eHealth Infrastructure
3.2.0 - release

This page is part of the FUT Infrastructure (v3.2.0: Release) based on FHIR (HL7® FHIR® Standard) R4. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Resource Profile: ehealth-questionnaire-advanced - Detailed Descriptions

Active as of 2024-09-02

Definitions for the ehealth-questionnaire-advanced resource profile.

Guidance on how to interpret the contents of this table can be found here

0. Questionnaire
2. Questionnaire.extension:variable
Slice Namevariable
Control0..*
TypeExtension(Variable) (Extension Type: Expression)
4. Questionnaire.item
6. Questionnaire.item.extension:calculatedExpression
Slice NamecalculatedExpression
Control0..1
TypeExtension(Calculated expression) (Extension Type: Expression)
8. Questionnaire.item.extension:usageMode
Slice NameusageMode
Control0..1
TypeExtension(QuestionnaireResponse Usage Mode) (Extension Type: code)
10. Questionnaire.item.answerOption
12. Questionnaire.item.answerOption.extension:ordinalValue
Slice NameordinalValue
Control0..1
TypeExtension(Ordinal Value) (Extension Type: decimal)

Guidance on how to interpret the contents of this table can be found here

0. Questionnaire
Definition

A structured set of questions intended to guide the collection of answers from end-users. Questionnaires provide detailed control over order, presentation, phraseology and grouping to allow coherent, consistent data collection.

ShortA structured set of questions
Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesForm, CRF, Survey
Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
que-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (name.matches('[A-Z]([A-Za-z0-9_]){0,254}'))
que-2: The link ids for groups and questions must be unique within the questionnaire (descendants().linkId.isDistinct())
que-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (name.matches('[A-Z]([A-Za-z0-9_]){0,254}'))
que-2: The link ids for groups and questions must be unique within the questionnaire (descendants().linkId.isDistinct())
2. Questionnaire.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

ShortA set of rules under which this content was created
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

Control0..1
Typeuri
Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. Questionnaire.extension
Definition

An Extension


May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortExtensionAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control20..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Questionnaire.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
  • value @ url
  • 6. Questionnaire.extension:recommendation
    Slice Namerecommendation
    Definition

    Defines the recommendation state of the questionnaire.

    ShortDegree to which this questionnaire is recommended for use.
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Questionnaire recommendation) (Extension Type: CodeableConcept)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    8. Questionnaire.extension:intendedOrganization
    Slice NameintendedOrganization
    Definition

    The questionnaire is intended to be used by these organizations.

    ShortThe organization intended to use this questionnaire.
    Control0..*
    This element is affected by the following invariants: ele-1
    TypeExtension(Questionnaire intended organization) (Extension Type: Reference(ehealth-organization)referenced)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    10. Questionnaire.extension:revision
    Slice Namerevision
    Definition

    Business revision of the resource

    ShortBusiness revision
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Revision) (Extension Type: string)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    12. Questionnaire.extension:modifierRole
    Slice NamemodifierRole
    Definition

    This is a modifier role that can hold a role and a reference to the item who has the role. Ex. owner + a reference to the owner organization.

    ShortModifier role
    Control1..*
    This element is affected by the following invariants: ele-1
    TypeExtension(Modified role) (Complex Extension)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    14. Questionnaire.extension:type
    Slice Nametype
    Definition

    Concept that represents the overall questionnaire

    ShortConcept that represents the overall questionnaire
    Control1..*
    This element is affected by the following invariants: ele-1
    TypeExtension(Questionnaire type) (Extension Type: CodeableConcept)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    16. Questionnaire.extension:styleSensitive
    Slice NamestyleSensitive
    Definition

    Indicates that the style extensions (style, markdown and xhtml) in this resource instance are essential to the interpretation of the instance and that systems that are not capable of rendering using those extensions should not be used to render the resource.

    ShortAre styles important for processing?
    Comments

    If set to true, all systems that claim to support this extension and that render elements from the resource SHALL either render the content as required by the style extensions (style, xhtml and markdown or shall indicate to the user that the resource (or specific elements in the resource) cannot be appropriately rendered by the system.

    For questionnaires, see additional guidance and examples in the SDC implementation guide.

    Control0..1
    TypeExtension(Style sensitive) (Extension Type: boolean)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    18. Questionnaire.extension:employeeTitle
    Slice NameemployeeTitle
    Definition

    Title for employed clinicians

    ShortTitle for clinicians
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Employee title) (Extension Type: string)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    20. Questionnaire.extension:usage
    Slice Nameusage
    Definition

    Description for clinicians

    Shortusage
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Usage) (Extension Type: string)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    22. Questionnaire.extension:predecessor
    Slice Namepredecessor
    Definition

    Version Predecessor

    ShortPredecessor
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Predecessor) (Extension Type: Identifier)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    24. Questionnaire.extension:base
    Slice Namebase
    Definition

    Version Base

    ShortBase
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Base) (Extension Type: Identifier)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    26. Questionnaire.extension:baseEnvironment
    Slice NamebaseEnvironment
    Definition

    Base environment

    ShortBase environment
    Control0..1
    This element is affected by the following invariants: ele-1
    TypeExtension(Base environment) (Extension Type: Identifier)
    Is Modifierfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    28. Questionnaire.extension:variable
    Slice Namevariable
    Definition

    Variable specifying a logic to generate a variable for use in subsequent logic. The name of the variable will be added to FHIRPath's context when processing descendants of the element that contains this extension as well as extensions within the same element.

    ShortVariable for processing
    Comments

    Ordering of variable extension declarations is significant as variables declared in one repetition of this extension might be used in subsequent extension repetitions

    For questionnaires, see additional guidance and examples in the SDC implementation guide.

    Control0..*
    TypeExtension(Variable) (Extension Type: Expression)
    Is Modifierfalse
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    30. Questionnaire.modifierExtension
    Definition

    May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

    Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

    ShortExtensions that cannot be ignored
    Comments

    There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

    Control0..*
    TypeExtension
    Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
    Summaryfalse
    Requirements

    Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

    Alternate Namesextensions, user content
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    32. Questionnaire.version
    Definition

    The identifier that is used to identify this version of the questionnaire when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the questionnaire author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence.

    ShortBusiness version of the questionnaire
    Comments

    There may be different questionnaire instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a reference to a particular business version of the questionnaire with the format [url]|[version].

    NoteThis is a business version Id, not a resource version Id (see discussion)
    Control10..1
    Typestring
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    34. Questionnaire.status
    Definition

    The status of this questionnaire. Enables tracking the life-cycle of the content.

    Shortdraft | active | retired | unknown
    Comments

    Allows filtering of questionnaires that are appropriate for use versus not.

    Control1..1
    BindingThe codes SHALL be taken from PublicationStatushttp://hl7.org/fhir/ValueSet/publication-status|4.0.1
    (required to http://hl7.org/fhir/ValueSet/publication-status|4.0.1)

    The lifecycle status of an artifact.

    Typecode
    Is Modifiertrue because This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

    Guidance on how to interpret the contents of this table can be found here

    0. Questionnaire
    Definition

    A structured set of questions intended to guide the collection of answers from end-users. Questionnaires provide detailed control over order, presentation, phraseology and grouping to allow coherent, consistent data collection.

    ShortA structured set of questions
    Control0..*
    Is Modifierfalse
    Summaryfalse
    Alternate NamesForm, CRF, Survey
    Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
    dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
    dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
    dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
    dom-6: A resource should have narrative for robust management (text.`div`.exists())
    que-0: Name should be usable as an identifier for the module by machine processing applications such as code generation (name.matches('[A-Z]([A-Za-z0-9_]){0,254}'))
    que-2: The link ids for groups and questions must be unique within the questionnaire (descendants().linkId.isDistinct())
    2. Questionnaire.id
    Definition

    The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

    ShortLogical id of this artifact
    Comments

    The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

    Control0..1
    Typeid
    Is Modifierfalse
    Summarytrue
    4. Questionnaire.meta
    Definition

    The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

    ShortMetadata about the resource
    Control0..1
    TypeMeta
    Is Modifierfalse
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    6. Questionnaire.implicitRules
    Definition

    A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

    ShortA set of rules under which this content was created
    Comments

    Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

    Control0..1
    Typeuri
    Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summarytrue
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    8. Questionnaire.language
    Definition

    The base language in which the resource is written.

    ShortLanguage of the resource content
    Comments

    Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

    Control0..1
    BindingThe codes SHOULD be taken from CommonLanguages
    (preferred to http://hl7.org/fhir/ValueSet/languages)

    A human language.

    Additional BindingsPurpose
    AllLanguagesMax Binding
    Typecode
    Is Modifierfalse
    Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    10. Questionnaire.text
    Definition

    A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

    ShortText summary of the resource, for human interpretation
    Comments

    Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

    Control0..1
    TypeNarrative
    Is Modifierfalse
    Summaryfalse
    Alternate Namesnarrative, html, xhtml, display
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    12. Questionnaire.contained
    Definition

    These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

    ShortContained, inline Resources
    Comments

    This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

    Control0..*
    TypeResource
    Is Modifierfalse
    Summaryfalse
    Alternate Namesinline resources, anonymous resources, contained resources
    14. Questionnaire.extension
    Definition

    An Extension

    ShortExtension
    Control2..*
    TypeExtension
    Is Modifierfalse
    Summaryfalse
    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
    SlicingThis element introduces a set of slices on Questionnaire.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
    • value @ url
    • 16. Questionnaire.extension:recommendation
      Slice Namerecommendation
      Definition

      Defines the recommendation state of the questionnaire.

      ShortDegree to which this questionnaire is recommended for use.
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Questionnaire recommendation) (Extension Type: CodeableConcept)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      18. Questionnaire.extension:intendedOrganization
      Slice NameintendedOrganization
      Definition

      The questionnaire is intended to be used by these organizations.

      ShortThe organization intended to use this questionnaire.
      Control0..*
      This element is affected by the following invariants: ele-1
      TypeExtension(Questionnaire intended organization) (Extension Type: Reference(ehealth-organization)referenced)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      20. Questionnaire.extension:revision
      Slice Namerevision
      Definition

      Business revision of the resource

      ShortBusiness revision
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Revision) (Extension Type: string)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      22. Questionnaire.extension:modifierRole
      Slice NamemodifierRole
      Definition

      This is a modifier role that can hold a role and a reference to the item who has the role. Ex. owner + a reference to the owner organization.

      ShortModifier role
      Control1..*
      This element is affected by the following invariants: ele-1
      TypeExtension(Modified role) (Complex Extension)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      24. Questionnaire.extension:type
      Slice Nametype
      Definition

      Concept that represents the overall questionnaire

      ShortConcept that represents the overall questionnaire
      Control1..*
      This element is affected by the following invariants: ele-1
      TypeExtension(Questionnaire type) (Extension Type: CodeableConcept)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      26. Questionnaire.extension:styleSensitive
      Slice NamestyleSensitive
      Definition

      Indicates that the style extensions (style, markdown and xhtml) in this resource instance are essential to the interpretation of the instance and that systems that are not capable of rendering using those extensions should not be used to render the resource.

      ShortAre styles important for processing?
      Comments

      If set to true, all systems that claim to support this extension and that render elements from the resource SHALL either render the content as required by the style extensions (style, xhtml and markdown or shall indicate to the user that the resource (or specific elements in the resource) cannot be appropriately rendered by the system.

      For questionnaires, see additional guidance and examples in the SDC implementation guide.

      Control0..1
      TypeExtension(Style sensitive) (Extension Type: boolean)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      28. Questionnaire.extension:employeeTitle
      Slice NameemployeeTitle
      Definition

      Title for employed clinicians

      ShortTitle for clinicians
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Employee title) (Extension Type: string)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      30. Questionnaire.extension:usage
      Slice Nameusage
      Definition

      Description for clinicians

      Shortusage
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Usage) (Extension Type: string)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      32. Questionnaire.extension:predecessor
      Slice Namepredecessor
      Definition

      Version Predecessor

      ShortPredecessor
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Predecessor) (Extension Type: Identifier)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      34. Questionnaire.extension:base
      Slice Namebase
      Definition

      Version Base

      ShortBase
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Base) (Extension Type: Identifier)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      36. Questionnaire.extension:baseEnvironment
      Slice NamebaseEnvironment
      Definition

      Base environment

      ShortBase environment
      Control0..1
      This element is affected by the following invariants: ele-1
      TypeExtension(Base environment) (Extension Type: Identifier)
      Is Modifierfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      38. Questionnaire.extension:variable
      Slice Namevariable
      Definition

      Variable specifying a logic to generate a variable for use in subsequent logic. The name of the variable will be added to FHIRPath's context when processing descendants of the element that contains this extension as well as extensions within the same element.

      ShortVariable for processing
      Comments

      Ordering of variable extension declarations is significant as variables declared in one repetition of this extension might be used in subsequent extension repetitions

      For questionnaires, see additional guidance and examples in the SDC implementation guide.

      Control0..*
      TypeExtension(Variable) (Extension Type: Expression)
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      40. Questionnaire.modifierExtension
      Definition

      May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

      Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

      ShortExtensions that cannot be ignored
      Comments

      There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

      Control0..*
      TypeExtension
      Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
      Summaryfalse
      Requirements

      Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

      Alternate Namesextensions, user content
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      42. Questionnaire.url
      Definition

      An absolute URI that is used to identify this questionnaire when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which at which an authoritative instance of this questionnaire is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the questionnaire is stored on different servers.

      ShortCanonical identifier for this questionnaire, represented as a URI (globally unique)
      Comments

      The name of the referenced questionnaire can be conveyed using the http://hl7.org/fhir/StructureDefinition/display extension.

      Control0..1
      Typeuri
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      … This is the id that will be used to link a QuestionnaireResponse to the Questionnaire the response is for.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      44. Questionnaire.identifier
      Definition

      A formal identifier that is used to identify this questionnaire when it is represented in other formats, or referenced in a specification, model, design or an instance.

      ShortAdditional identifier for the questionnaire
      Comments

      Typically, this is used for identifiers that can go in an HL7 V3 II (instance identifier) data type, and can then identify this questionnaire outside of FHIR, where it is not possible to use the logical URI.

      NoteThis is a business identifier, not a resource identifier (see discussion)
      Control0..*
      TypeIdentifier
      Is Modifierfalse
      Summarytrue
      Requirements

      Allows externally provided and/or usable business identifiers to be easily associated with the module.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      46. Questionnaire.version
      Definition

      The identifier that is used to identify this version of the questionnaire when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the questionnaire author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence.

      ShortBusiness version of the questionnaire
      Comments

      There may be different questionnaire instances that have the same identifier but different versions. The version can be appended to the url in a reference to allow a reference to a particular business version of the questionnaire with the format [url]|[version].

      NoteThis is a business version Id, not a resource version Id (see discussion)
      Control1..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      48. Questionnaire.name
      Definition

      A natural language name identifying the questionnaire. This name should be usable as an identifier for the module by machine processing applications such as code generation.

      ShortName for this questionnaire (computer friendly)
      Comments

      The name is not expected to be globally unique. The name should be a simple alphanumeric type name to ensure that it is machine-processing friendly.

      Control0..1
      This element is affected by the following invariants: inv-0
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      Support human navigation and code generation.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      50. Questionnaire.title
      Definition

      A short, descriptive, user-friendly title for the questionnaire.

      ShortName for this questionnaire (human friendly)
      Comments

      This name does not need to be machine-processing friendly and may contain punctuation, white-space, etc.

      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      52. Questionnaire.derivedFrom
      Definition

      The URL of a Questionnaire that this Questionnaire is based on.

      ShortInstantiates protocol or definition
      Control0..*
      Typecanonical(Questionnaire)
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Requirements

      Allows a Questionnaire to be created based on another Questionnaire.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      54. Questionnaire.status
      Definition

      The status of this questionnaire. Enables tracking the life-cycle of the content.

      Shortdraft | active | retired | unknown
      Comments

      Allows filtering of questionnaires that are appropriate for use versus not.

      Control1..1
      BindingThe codes SHALL be taken from PublicationStatus
      (required to http://hl7.org/fhir/ValueSet/publication-status|4.0.1)

      The lifecycle status of an artifact.

      Typecode
      Is Modifiertrue because This is labeled as "Is Modifier" because applications should not use a retired {{title}} without due consideration
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      56. Questionnaire.experimental
      Definition

      A Boolean value to indicate that this questionnaire is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage.

      ShortFor testing purposes, not real usage
      Comments

      Allows filtering of questionnaires that are appropriate for use versus not.

      Control0..1
      Typeboolean
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      Enables experimental content to be developed following the same lifecycle that would be used for a production-level questionnaire.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      58. Questionnaire.subjectType
      Definition

      The types of subjects that can be the subject of responses created for the questionnaire.

      ShortResource that can be subject of QuestionnaireResponse
      Comments

      If none are specified, then the subject is unlimited.

      Control0..*
      BindingThe codes SHALL be taken from ResourceType
      (required to http://hl7.org/fhir/ValueSet/resource-types|4.0.1)

      One of the resource types defined as part of this version of FHIR.

      Typecode
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      60. Questionnaire.date
      Definition

      The date (and optionally time) when the questionnaire was published. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the questionnaire changes.

      ShortDate last changed
      Comments

      Note that this is not the same as the resource last-modified-date, since the resource may be a secondary representation of the questionnaire. Additional specific dates may be added as extensions or be found by consulting Provenances associated with past versions of the resource.

      Control0..1
      TypedateTime
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Alternate NamesRevision Date
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      62. Questionnaire.publisher
      Definition

      The name of the organization or individual that published the questionnaire.

      ShortName of the publisher (organization or individual)
      Comments

      Usually an organization but may be an individual. The publisher (or steward) of the questionnaire is the organization or individual primarily responsible for the maintenance and upkeep of the questionnaire. This is not necessarily the same individual or organization that developed and initially authored the content. The publisher is the primary point of contact for questions or issues with the questionnaire. This item SHOULD be populated unless the information is available from context.

      Control0..1
      Typestring
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summarytrue
      Requirements

      Helps establish the "authority/credibility" of the questionnaire. May also allow for contact.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      64. Questionnaire.contact
      Definition

      Contact details to assist a user in finding and communicating with the publisher.

      ShortContact details for the publisher
      Comments

      May be a web site, an email address, a telephone number, etc.

      Control0..*
      TypeContactDetail
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      66. Questionnaire.description
      Definition

      A free text natural language description of the questionnaire from a consumer's perspective.

      ShortNatural language description of the questionnaire
      Comments

      This description can be used to capture details such as why the questionnaire was built, comments about misuse, instructions for clinical use and interpretation, literature references, examples from the paper world, etc. It is not a rendering of the questionnaire as conveyed in the 'text' field of the resource itself. This item SHOULD be populated unless the information is available from context (e.g. the language of the questionnaire is presumed to be the predominant language in the place the questionnaire was created).

      Control0..1
      Typemarkdown
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      68. Questionnaire.useContext
      Definition

      The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate questionnaire instances.

      ShortThe context that the content is intended to support
      Comments

      When multiple useContexts are specified, there is no expectation that all or any of the contexts apply.

      Control0..*
      TypeUsageContext
      Is Modifierfalse
      Summarytrue
      Requirements

      Assist in searching for appropriate content.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      70. Questionnaire.jurisdiction
      Definition

      A legal or geographic region in which the questionnaire is intended to be used.

      ShortIntended jurisdiction for questionnaire (if applicable)
      Comments

      It may be possible for the questionnaire to be used in jurisdictions other than those for which it was originally designed or intended.

      Control0..*
      BindingThe codes SHALL be taken from Jurisdiction
      (required to http://ehealth.sundhed.dk/vs/jurisdiction)
      TypeCodeableConcept
      Is Modifierfalse
      Summarytrue
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      72. Questionnaire.purpose
      Definition

      Explanation of why this questionnaire is needed and why it has been designed as it has.

      ShortWhy this questionnaire is defined
      Comments

      This element does not describe the usage of the questionnaire. Instead, it provides traceability of ''why'' the resource is either needed or ''why'' it is defined as it is. This may be used to point to source materials or specifications that drove the structure of this questionnaire.

      Control0..1
      Typemarkdown
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      74. Questionnaire.copyright
      Definition

      A copyright statement relating to the questionnaire and/or its contents. Copyright statements are generally legal restrictions on the use and publishing of the questionnaire.

      ShortUse and/or publishing restrictions
      Control0..1
      Typemarkdown
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Requirements

      Consumers must be able to determine any legal restrictions on the use of the questionnaire and/or its content.

      Alternate NamesLicense, Restrictions
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      76. Questionnaire.approvalDate
      Definition

      The date on which the resource content was approved by the publisher. Approval happens once when the content is officially approved for usage.

      ShortWhen the questionnaire was approved by publisher
      Comments

      The 'date' element may be more recent than the approval date because of minor changes or editorial corrections.

      Control0..1
      Typedate
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      78. Questionnaire.lastReviewDate
      Definition

      The date on which the resource content was last reviewed. Review happens periodically after approval but does not change the original approval date.

      ShortWhen the questionnaire was last reviewed
      Comments

      If specified, this date follows the original approval date.

      Control0..1
      Typedate
      Is Modifierfalse
      Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
      Summaryfalse
      Requirements

      Gives a sense of how "current" the content is. Resources that have not been reviewed in a long time may have a risk of being less appropriate/relevant.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      80. Questionnaire.effectivePeriod
      Definition

      The period during which the questionnaire content was or is planned to be in active use.

      ShortWhen the questionnaire is expected to be used
      Comments

      The effective period for a questionnaire determines when the content is applicable for usage and is independent of publication and review dates. For example, a measure intended to be used for the year 2016 might be published in 2015.

      Control0..1
      TypePeriod
      Is Modifierfalse
      Summarytrue
      Requirements

      Allows establishing a transition before a resource comes into effect and also allows for a sunsetting process when new versions of the questionnaire are or are expected to be used instead.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      82. Questionnaire.code
      Definition

      An identifier for this question or group of questions in a particular terminology such as LOINC.

      ShortConcept that represents the overall questionnaire
      Control0..*
      BindingFor example codes, see QuestionnaireQuestionCodes
      (example to http://hl7.org/fhir/ValueSet/questionnaire-questions)

      Codes for questionnaires, groups and individual questions.

      TypeCoding
      Is Modifierfalse
      Summarytrue
      Requirements

      Allows linking of the complete Questionnaire resources to formal terminologies. It's common for "panels" of questions to be identified by a code.

      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      84. Questionnaire.item
      Definition

      A particular question, question grouping or display text that is part of the questionnaire.

      ShortQuestions and sections within the Questionnaire
      Comments

      The content of the questionnaire is constructed from an ordered, hierarchical collection of items.

      Control0..*
      This element is affected by the following invariants: que-3
      TypeBackboneElement
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      que-1: Group items must have nested items, display items cannot have nested items ((type='group' implies item.empty().not()) and (type.trace('type')='display' implies item.trace('item').empty()))
      que-3: Display items cannot have a "code" asserted (type!='display' or code.empty())
      que-4: A question cannot have both answerOption and answerValueSet (answerOption.empty() or answerValueSet.empty())
      que-5: Only 'choice' and 'open-choice' items can have answerValueSet ((type ='choice' or type = 'open-choice' or type = 'decimal' or type = 'integer' or type = 'date' or type = 'dateTime' or type = 'time' or type = 'string' or type = 'quantity') or (answerValueSet.empty() and answerOption.empty()))
      que-6: Required and repeat aren't permitted for display items (type!='display' or (required.empty() and repeats.empty()))
      que-8: Initial values can't be specified for groups or display items ((type!='group' and type!='display') or initial.empty())
      que-9: Read-only can't be specified for "display" items (type!='display' or readOnly.empty())
      que-10: Maximum length can only be declared for simple question types ((type in ('boolean' | 'decimal' | 'integer' | 'string' | 'text' | 'url' | 'open-choice')) or maxLength.empty())
      que-11: If one or more answerOption is present, initial[x] must be missing (answerOption.empty() or initial.empty())
      que-12: If there are more than one enableWhen, enableBehavior must be specified (enableWhen.count() > 2 implies enableBehavior.exists())
      que-13: Can only have multiple initial values for repeating items (repeats=true or initial.count() <= 1)
      sliderStepValueDecimal-Type: Item must have type='decimal' when using extension 'ehealth-questionnaire-sliderStepValueDecimal' (extension('http://ehealth.sundhed.dk/fhir/StructureDefinition/ehealth-questionnaire-sliderStepValueDecimal').exists() implies type = 'decimal')
      86. Questionnaire.item.id
      Definition

      Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

      ShortUnique id for inter-element referencing
      Control0..1
      Typestring
      Is Modifierfalse
      XML FormatIn the XML format, this property is represented as an attribute.
      Summaryfalse
      88. Questionnaire.item.extension
      Definition

      An Extension

      ShortExtension
      Control0..*
      TypeExtension
      Is Modifierfalse
      Summaryfalse
      Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
      ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
      SlicingThis element introduces a set of slices on Questionnaire.item.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
      • value @ url
      • 90. Questionnaire.item.extension:questionnaire-minOccurs
        Slice Namequestionnaire-minOccurs
        Definition

        The minimum number of times the group must appear, or the minimum number of answers for a question - when greater than 1.

        ShortMinimum repetitions
        Comments

        Default assumption for "required" elements is minOccurs=1. See additional guidance and examples in the SDC implementation guide.

        Control0..1
        TypeExtension(Questionnaire Min Occurs) (Extension Type: integer)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        92. Questionnaire.item.extension:questionnaire-maxOccurs
        Slice Namequestionnaire-maxOccurs
        Definition

        The maximum number of times the group must appear, or the maximum number of answers for a question - when greater than 1 and not unlimited.

        ShortMaximum repetitions
        Comments

        Only relevant if the element has repeats=true and there's a need to constrain the number of allowed repetitions. See additional guidance and examples in the SDC implementation guide.

        Control0..1
        TypeExtension(Questionnaire Max Occurs) (Extension Type: integer)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        94. Questionnaire.item.extension:minValue
        Slice NameminValue
        Definition

        The inclusive lower bound on the range of allowed values for the data element.

        ShortMust be >= this value
        Comments

        Data type specified must be the same as the data type for the data element. For questionnaires, see additional guidance and examples in the SDC implementation guide.

        Control0..1
        TypeExtension(Min value) (Extension Type: Choice of: date, dateTime, time, decimal, integer, Quantity)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        96. Questionnaire.item.extension:maxValue
        Slice NamemaxValue
        Definition

        The inclusive upper bound on the range of allowed values for the data element.

        ShortMust be <= this value
        Comments

        Data type specified must be the same as the data type for the data element. For questionnaires, see additional guidance and examples in the SDC implementation guide.

        Control0..1
        TypeExtension(Max value) (Extension Type: Choice of: date, dateTime, time, decimal, integer, Quantity)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        98. Questionnaire.item.extension:questionnaire-sliderStepValue
        Slice Namequestionnaire-sliderStepValue
        Definition

        For slider-based controls, indicates the step size to use when toggling the control up or down.

        ShortIncrement value for slider
        Comments

        See additional guidance and examples in the SDC implementation guide.

        Control0..1
        TypeExtension(Questionnaire Slider Step Value) (Extension Type: integer)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        100. Questionnaire.item.extension:questionnaire-sliderStepValueDecimal
        Slice Namequestionnaire-sliderStepValueDecimal
        Definition

        Defines a decimal number step-value for the slider in the questionnaire.

        ShortThe slider step-value as decimal-number
        Control0..1
        This element is affected by the following invariants: ele-1
        TypeExtension(Slider Step-value Decimal) (Extension Type: decimal)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        102. Questionnaire.item.extension:feedback
        Slice Namefeedback
        Definition

        Feedback if reponse is within the defined range.

        ShortFeedback if reponse is within the defined range.
        Control0..1
        This element is affected by the following invariants: ele-1
        TypeExtension(Feedback) (Complex Extension)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        104. Questionnaire.item.extension:overviewUsageMode
        Slice NameoverviewUsageMode
        Definition

        Identifies whether the specified element and/or results of the element should appear in overview or table presentation.

        ShortIdentifies whether the specified element and/or results of the element should appear in overview or table presentation.
        Control0..*
        This element is affected by the following invariants: ele-1
        TypeExtension(Overview usage mode) (Extension Type: CodeableConcept)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        106. Questionnaire.item.extension:itemControl
        Slice NameitemControl
        Definition

        The type of data entry control or structure that should be used to render the item.

        ShortE.g. Fly-over, Table, Checkbox, Combo-box, Lookup, etc.
        Comments

        Different controls may be appropriate for different item types. It is up to the system rendering a questionnaire as to what controls it will support and for which data types. See additional guidance and examples in the SDC implementation guide.

        Control0..1
        TypeExtension(Questionnaire Item Control) (Extension Type: CodeableConcept)
        Is Modifierfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        108. Questionnaire.item.extension:itemControl.id
        Definition

        Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

        ShortUnique id for inter-element referencing
        Control0..1
        This element is affected by the following invariants: ele-1
        Typeid
        Is Modifierfalse
        XML FormatIn the XML format, this property is represented as an attribute.
        Summaryfalse
        110. Questionnaire.item.extension:itemControl.extension
        Definition

        An Extension

        ShortExtension
        Control0..0
        TypeExtension
        Is Modifierfalse
        Summaryfalse
        Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
        ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
        SlicingThis element introduces a set of slices on Questionnaire.item.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
        • value @ url
        • 112. Questionnaire.item.extension:itemControl.url
          Definition

          Source of the definition for the extension code - a logical name or a URL.

          Shortidentifies the meaning of the extension
          Comments

          The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.

          Control1..1
          Typeuri
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          Fixed Valuehttp://hl7.org/fhir/StructureDefinition/questionnaire-itemControl
          114. Questionnaire.item.extension:itemControl.value[x]
          Definition

          Value of extension - must be one of a constrained set of the data types (see Extensibility for a list).

          ShortValue of extension
          Control1..1
          This element is affected by the following invariants: ext-1
          BindingThe codes SHALL be taken from Questionnaire Item Control
          (required to http://ehealth.sundhed.dk/vs/questionnaire-item-control)
          TypeCodeableConcept
          [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
          Is Modifierfalse
          Summaryfalse
          Requirements

          The data type is CodeableConcept to allow for additional codings that might provide finer-grained control information or specification of specific controls in different rendering environments. CodeableConcept.text is generally unnecessary for this element and should not be sent alone as the use-case for this element is for computable interpretation by rendering engines.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          116. Questionnaire.item.extension:ehealth-question-image
          Slice Nameehealth-question-image
          Definition

          Defines the images in the questionnaire answers and questions.

          ShortThe image for a questionnaire
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(Questionnaire image) (Complex Extension)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          118. Questionnaire.item.extension:shortText
          Slice NameshortText
          Definition

          Short text for questionnaires

          ShortShort text
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(Short text) (Extension Type: string)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          120. Questionnaire.item.extension:helpText
          Slice NamehelpText
          Definition

          Help text for questions. xhtml contains an equivalent of the text string, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

          ShortHelp text
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(Help text) (Complex Extension)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          122. Questionnaire.item.extension:answerSignificance
          Slice NameanswerSignificance
          Definition

          Defines the Answer significance for an answer option in the questionnaire.

          ShortThe Answer significance for an answer
          Control0..*
          This element is affected by the following invariants: ele-1
          TypeExtension(Answer significance) (Complex Extension)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          124. Questionnaire.item.extension:externalIdentifier
          Slice NameexternalIdentifier
          Definition

          External Identifier. Note that this Identifier does not have to unique within the Questionnaire.

          ShortExternal Identifier
          Control0..1
          This element is affected by the following invariants: ele-1
          TypeExtension(ExternalIdentifier) (Extension Type: Identifier)
          Is Modifierfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          126. Questionnaire.item.extension:calculatedExpression
          Slice NamecalculatedExpression
          Definition

          Calculated value for a question answer as determined by an evaluated expression.

          ShortExpression-determined initial value
          Comments

          Calculated value is updated as other answers in the QuestionnaireResponse are filled in.

          Control0..1
          TypeExtension(Calculated expression) (Extension Type: Expression)
          Is Modifierfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          128. Questionnaire.item.extension:usageMode
          Slice NameusageMode
          Definition

          Identifies that the specified element should only appear in certain "modes" of operation.

          Shortcapture | display | display-non-empty | capture-display | capture-display-non-empty
          Comments

          See additional guidance and examples in the SDC implementation guide.

          Control0..1
          TypeExtension(QuestionnaireResponse Usage Mode) (Extension Type: code)
          Is Modifierfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          130. Questionnaire.item.modifierExtension
          Definition

          May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

          Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

          ShortExtensions that cannot be ignored even if unrecognized
          Comments

          There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

          Control0..*
          TypeExtension
          Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
          Summarytrue
          Requirements

          Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

          Alternate Namesextensions, user content, modifiers
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          132. Questionnaire.item.linkId
          Definition

          An identifier that is unique within the Questionnaire allowing linkage to the equivalent item in a QuestionnaireResponse resource.

          ShortUnique id for item in questionnaire
          Comments

          This ''can'' be a meaningful identifier (e.g. a LOINC code) but is not intended to have any meaning. GUIDs or sequential numbers are appropriate here.

          Control1..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Requirements

          QuestionnaireResponse does not require omitted items to be included and may have some items that repeat, so linkage based on position alone is not sufficient.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          134. Questionnaire.item.definition
          Definition

          This element is a URI that refers to an ElementDefinition that provides information about this item, including information that might otherwise be included in the instance of the Questionnaire resource. A detailed description of the construction of the URI is shown in Comments, below. If this element is present then the following element values MAY be derived from the Element Definition if the corresponding elements of this Questionnaire resource instance have no value:

          • code (ElementDefinition.code)
          • type (ElementDefinition.type)
          • required (ElementDefinition.min)
          • repeats (ElementDefinition.max)
          • maxLength (ElementDefinition.maxLength)
          • answerValueSet (ElementDefinition.binding)
          • options (ElementDefinition.binding).
          ShortElementDefinition - details for the item
          Comments

          The uri refers to an ElementDefinition in a StructureDefinition and always starts with the canonical URL for the target resource. When referring to a StructureDefinition, a fragment identifier is used to specify the element definition by its id Element.id. E.g. http://hl7.org/fhir/StructureDefinition/Observation#Observation.value[x]. In the absence of a fragment identifier, the first/root element definition in the target is the matching element definition.

          Control0..1
          Typeuri
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Requirements

          A common pattern is to define a set of data elements and then build multiple questionnaires for different circumstances to gather the data. This element provides traceability to the common definition and allows the content for the question to come from the underlying definition.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          136. Questionnaire.item.code
          Definition

          A terminology code that corresponds to this group or question (e.g. a code from LOINC, which defines many questions and answers).

          ShortCorresponding concept for this item in a terminology
          Comments

          The value may come from the ElementDefinition referred to by .definition.

          Control0..*
          This element is affected by the following invariants: que-3
          BindingFor example codes, see QuestionnaireQuestionCodes
          (example to http://hl7.org/fhir/ValueSet/questionnaire-questions)

          Codes for questionnaires, groups and individual questions.

          TypeCoding
          Is Modifierfalse
          Summaryfalse
          Requirements

          Allows linking of groups of questions to formal terminologies.

          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          138. Questionnaire.item.prefix
          Definition

          A short label for a particular group, question or set of display text within the questionnaire used for reference by the individual completing the questionnaire.

          ShortE.g. "1(a)", "2.5.3"
          Comments

          These are generally unique within a questionnaire, though this is not guaranteed. Some questionnaires may have multiple questions with the same label with logic to control which gets exposed. Typically, these won't be used for "display" items, though such use is not prohibited. Systems SHOULD NOT generate their own prefixes if prefixes are defined for any items within a Questionnaire.

          Control0..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Requirements

          Separating the label from the question text allows improved rendering. Also, instructions will often refer to specific prefixes, so there's a need for the questionnaire design to have control over what labels are used.

          Alternate Nameslabel
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          140. Questionnaire.item.text
          Definition

          The name of a section, the text of a question or text content for a display item.

          ShortPrimary text for the item
          Comments

          When using this element to represent the name of a section, use group type item and also make sure to limit the text element to a short string suitable for display as a section heading. Group item instructions should be included as a display type item within the group.

          Control0..1
          Typestring
          Is Modifierfalse
          Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          142. Questionnaire.item.text.id
          Definition

          unique id for the element within a resource (for internal references)

          Shortxml:id (or equivalent in JSON)
          Control0..1
          Typestring
          Is Modifierfalse
          XML FormatIn the XML format, this property is represented as an attribute.
          Summaryfalse
          144. Questionnaire.item.text.extension
          Definition

          An Extension

          ShortExtension
          Control0..*
          TypeExtension
          Is Modifierfalse
          Summaryfalse
          Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
          ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
          SlicingThis element introduces a set of slices on Questionnaire.item.text.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
          • value @ url
          • 146. Questionnaire.item.text.extension:xhtml
            Slice Namexhtml
            Definition

            This is an equivalent of the string on which the extension is sent, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

            ShortString equivalent with html markup
            Comments

            For questionnaires, see additional guidance and examples in the SDC implementation guide.

            Control0..1
            TypeExtension(XHTML Representation) (Extension Type: string)
            Is Modifierfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            148. Questionnaire.item.text.value
            Definition

            The actual value

            ShortPrimitive value for string
            Control0..1
            Typestring
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            Max Length:1048576
            150. Questionnaire.item.type
            Definition

            The type of questionnaire item this is - whether text for display, a grouping of other items or a particular type of data to be captured (string, integer, coded choice, etc.).

            Shortgroup | display | boolean | decimal | integer | date | dateTime +
            Comments

            Additional constraints on the type of answer can be conveyed by extensions. The value may come from the ElementDefinition referred to by .definition.

            Control1..1
            BindingThe codes SHALL be taken from QuestionnaireItemType
            (required to http://hl7.org/fhir/ValueSet/item-type|4.0.1)

            Distinguishes groups from questions and display text and indicates data type for questions.

            Typecode
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Requirements

            Defines the format in which the user is to be prompted for the answer.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            152. Questionnaire.item.enableWhen
            Definition

            A constraint indicating that this item should only be enabled (displayed/allow answers to be captured) when the specified condition is true.

            ShortOnly allow data when
            Comments

            If multiple repetitions of this extension are present, the item should be enabled when the condition for any of the repetitions is true. I.e. treat "enableWhen"s as being joined by an "or" clause. This element is a modifier because if enableWhen is present for an item, "required" is ignored unless one of the enableWhen conditions is met. When an item is disabled, all of its descendants are disabled, regardless of what their own enableWhen logic might evaluate to.

            Control0..*
            TypeBackboneElement
            Is Modifiertrue because If enableWhen is present and the condition evaluates to false, then the Questionnaire behaves as though the elements weren't actually present
            Summaryfalse
            Requirements

            Allows questionnaires to adapt based on answers to other questions. E.g. If physical gender is specified as a male, no need to capture pregnancy history. Also allows conditional display of instructions or groups of questions.

            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            que-7: If the operator is 'exists', the value must be a boolean (operator = 'exists' implies (answer is Boolean))
            154. Questionnaire.item.enableWhen.id
            Definition

            Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

            ShortUnique id for inter-element referencing
            Control0..1
            Typestring
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            156. Questionnaire.item.enableWhen.extension
            Definition

            May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

            ShortAdditional content defined by implementations
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control0..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Alternate Namesextensions, user content
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            158. Questionnaire.item.enableWhen.modifierExtension
            Definition

            May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

            Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

            ShortExtensions that cannot be ignored even if unrecognized
            Comments

            There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

            Control0..*
            TypeExtension
            Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
            Summarytrue
            Requirements

            Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

            Alternate Namesextensions, user content, modifiers
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            160. Questionnaire.item.enableWhen.question
            Definition

            The linkId for the question whose answer (or lack of answer) governs whether this item is enabled.

            ShortQuestion that determines whether item is enabled
            Comments

            If multiple question occurrences are present for the same question (same linkId), then this refers to the nearest question occurrence reachable by tracing first the "ancestor" axis and then the "preceding" axis and then the "following" axis.

            Control1..1
            Typestring
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            162. Questionnaire.item.enableWhen.operator
            Definition

            Specifies the criteria by which the question is enabled.

            Shortexists | = | != | > | < | >= | <=
            Control1..1
            BindingThe codes SHALL be taken from QuestionnaireItemOperator
            (required to http://hl7.org/fhir/ValueSet/questionnaire-enable-operator|4.0.1)

            The criteria by which a question is enabled.

            Typecode
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            164. Questionnaire.item.enableWhen.answer[x]
            Definition

            A value that the referenced question is tested using the specified operator in order for the item to be enabled.

            ShortValue for question comparison based on operator
            Control1..1
            This element is affected by the following invariants: que-7
            BindingFor example codes, see QuestionnaireAnswerCodes
            (example to http://hl7.org/fhir/ValueSet/questionnaire-answers)

            Allowed values to answer questions.

            TypeChoice of: boolean, decimal, integer, date, dateTime, time, string, Coding, Quantity, Reference(Resource)
            [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            166. Questionnaire.item.enableBehavior
            Definition

            Controls how multiple enableWhen values are interpreted - whether all or any must be true.

            Shortall | any
            Comments

            This element must be specified if more than one enableWhen value is provided.

            Control0..1
            This element is affected by the following invariants: que-12
            BindingThe codes SHALL be taken from EnableWhenBehavior
            (required to http://hl7.org/fhir/ValueSet/questionnaire-enable-behavior|4.0.1)

            Controls how multiple enableWhen values are interpreted - whether all or any must be true.

            Typecode
            Is Modifierfalse
            Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            168. Questionnaire.item.enableBehavior.id
            Definition

            unique id for the element within a resource (for internal references)

            Shortxml:id (or equivalent in JSON)
            Control0..1
            Typestring
            Is Modifierfalse
            XML FormatIn the XML format, this property is represented as an attribute.
            Summaryfalse
            170. Questionnaire.item.enableBehavior.extension
            Definition

            An Extension

            ShortExtension
            Control0..*
            TypeExtension
            Is Modifierfalse
            Summaryfalse
            Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
            ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
            SlicingThis element introduces a set of slices on Questionnaire.item.enableBehavior.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
            • value @ url
            • 172. Questionnaire.item.enableBehavior.extension:conditionId
              Slice NameconditionId
              Definition

              Id for condition on question.

              ShortCondition Id
              Control0..1
              This element is affected by the following invariants: ele-1
              TypeExtension(Condition Id) (Extension Type: string)
              Is Modifierfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              174. Questionnaire.item.enableBehavior.value
              Definition

              Primitive value for code

              ShortPrimitive value for code
              Control0..1
              Typestring
              Is Modifierfalse
              XML FormatIn the XML format, this property is represented as an attribute.
              Summaryfalse
              176. Questionnaire.item.required
              Definition

              An indication, if true, that the item must be present in a "completed" QuestionnaireResponse. If false, the item may be skipped when answering the questionnaire.

              ShortWhether the item must be included in data results
              Comments

              Questionnaire.item.required only has meaning for elements that are conditionally enabled with enableWhen if the condition evaluates to true. If an item that contains other items is marked as required, that does not automatically make the contained elements required (though required groups must contain at least one child element). The value may come from the ElementDefinition referred to by .definition.

              Control0..1
              This element is affected by the following invariants: que-6
              Typeboolean
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Meaning if MissingItems are generally assumed not to be required unless explicitly specified. Systems SHOULD always populate this value
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              178. Questionnaire.item.repeats
              Definition

              An indication, if true, that the item may occur multiple times in the response, collecting multiple answers for questions or multiple sets of answers for groups.

              ShortWhether the item may repeat
              Comments

              If a question is marked as repeats=true, then multiple answers can be provided for the question in the corresponding QuestionnaireResponse. When rendering the questionnaire, it is up to the rendering software whether to render the question text for each answer repetition (i.e. "repeat the question") or to simply allow entry/selection of multiple answers for the question (repeat the answers). Which is most appropriate visually may depend on the type of answer as well as whether there are nested items.

              The resulting QuestionnaireResponse will be populated the same way regardless of rendering - one 'question' item with multiple answer values.

              The value may come from the ElementDefinition referred to by .definition.

              Control0..1
              This element is affected by the following invariants: que-6
              Typeboolean
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Requirements

              Items may be used to create set of (related) questions that can be repeated to give multiple answers to such a set.

              Meaning if MissingItems are generally assumed not to repeat unless explicitly specified. Systems SHOULD always populate this value
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              180. Questionnaire.item.readOnly
              Definition

              An indication, when true, that the value cannot be changed by a human respondent to the Questionnaire.

              ShortDon't allow human editing
              Comments

              The value of readOnly elements can be established by asserting extensions for defaultValues, linkages that support pre-population and/or extensions that support calculation based on other answers.

              Control0..1
              This element is affected by the following invariants: que-9
              Typeboolean
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Requirements

              Allows certain information to be phrased (and rendered) as a question and an answer, while keeping users from changing it. May also be useful for preventing changes to pre-populated portions of a questionnaire, for calculated values, etc.

              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              182. Questionnaire.item.maxLength
              Definition

              The maximum number of characters that are permitted in the answer to be considered a "valid" QuestionnaireResponse.

              ShortNo more than this many characters
              Comments

              For base64binary, reflects the number of characters representing the encoded data, not the number of bytes of the binary data. The value may come from the ElementDefinition referred to by .definition.

              Control0..1
              This element is affected by the following invariants: que-10
              Typeinteger
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              184. Questionnaire.item.answerValueSet
              Definition

              A reference to a value set containing a list of codes representing permitted answers for a "choice" or "open-choice" question.

              ShortValueset containing permitted answers
              Comments

              LOINC defines many useful value sets for questionnaire responses. See LOINC Answer Lists. The value may come from the ElementDefinition referred to by .definition.

              Control0..1
              This element is affected by the following invariants: que-4, que-5
              Typecanonical(ValueSet)
              Is Modifierfalse
              Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              186. Questionnaire.item.answerOption
              Definition

              One of the permitted answers for a "choice" or "open-choice" question.

              ShortPermitted answer
              Comments

              This element can be used when the value set machinery of answerValueSet is deemed too cumbersome or when there's a need to capture possible answers that are not codes.

              Control0..*
              This element is affected by the following invariants: que-4, que-5
              TypeBackboneElement
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              188. Questionnaire.item.answerOption.id
              Definition

              Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

              ShortUnique id for inter-element referencing
              Control0..1
              Typestring
              Is Modifierfalse
              XML FormatIn the XML format, this property is represented as an attribute.
              Summaryfalse
              190. Questionnaire.item.answerOption.extension
              Definition

              An Extension

              ShortExtension
              Control0..*
              TypeExtension
              Is Modifierfalse
              Summaryfalse
              Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
              ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
              SlicingThis element introduces a set of slices on Questionnaire.item.answerOption.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
              • value @ url
              • 192. Questionnaire.item.answerOption.extension:ehealth-answeroption-image
                Slice Nameehealth-answeroption-image
                Definition

                Defines the images in the questionnaire answers and questions.

                ShortThe image for a questionnaire
                Control0..1
                This element is affected by the following invariants: ele-1
                TypeExtension(Questionnaire image) (Complex Extension)
                Is Modifierfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                194. Questionnaire.item.answerOption.extension:ordinalValue
                Slice NameordinalValue
                Definition

                A numeric value that allows the comparison (less than, greater than) or other numerical manipulation of a concept (e.g. Adding up components of a score). Scores are usually a whole number, but occasionally decimals are encountered in scores.

                ShortAssigned Ordinal Value
                Comments

                Scores are commonly encountered in various clinical assessment scales. Assigning a value to a concept should generally be done in a formal code system that defines the value, or in an applicable value set for the concept, but some concepts do not have a formal definition (or are not even represented as a concept formally, especially in Questionnaires, so this extension is allowed to appear ouside those preferred contexts. Scores may even be assigned arbitrarily during use (hence, on Coding). The value may be constrained to an integer in some contexts of use. Todo: Scoring algorithms may also be defined directly, but how this is done is not yet defined.

                Control0..1
                TypeExtension(Ordinal Value) (Extension Type: decimal)
                Is Modifierfalse
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                196. Questionnaire.item.answerOption.modifierExtension
                Definition

                May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                ShortExtensions that cannot be ignored even if unrecognized
                Comments

                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                Control0..*
                TypeExtension
                Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                Summarytrue
                Requirements

                Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                Alternate Namesextensions, user content, modifiers
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                198. Questionnaire.item.answerOption.value[x]
                Definition

                A potential answer that's allowed as the answer to this question.

                ShortAnswer value
                Comments

                The data type of the value must agree with the item.type.

                Control1..1
                BindingFor example codes, see QuestionnaireAnswerCodes
                (example to http://hl7.org/fhir/ValueSet/questionnaire-answers)

                Allowed values to answer questions.

                TypeChoice of: integer, date, time, string, Coding, Reference(Resource)
                [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                Is Modifierfalse
                Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                Summaryfalse
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                200. Questionnaire.item.answerOption.value[x].id
                Definition

                Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                ShortUnique id for inter-element referencing
                Control0..1
                Typestring
                Is Modifierfalse
                XML FormatIn the XML format, this property is represented as an attribute.
                Summaryfalse
                202. Questionnaire.item.answerOption.value[x].extension
                Definition

                May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                ShortAdditional content defined by implementations
                Comments

                There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                Control0..*
                TypeExtension
                Is Modifierfalse
                Summaryfalse
                Alternate Namesextensions, user content
                Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                SlicingThis element introduces a set of slices on Questionnaire.item.answerOption.value[x].extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                • value @ url
                • 204. Questionnaire.item.answerOption.value[x].extension:xhtml
                  Slice Namexhtml
                  Definition

                  This is an equivalent of the string on which the extension is sent, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

                  ShortString equivalent with html markup
                  Comments

                  For questionnaires, see additional guidance and examples in the SDC implementation guide.

                  Control0..1
                  TypeExtension(XHTML Representation) (Extension Type: string)
                  Is Modifierfalse
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  206. Questionnaire.item.answerOption.initialSelected
                  Definition

                  Indicates whether the answer value is selected when the list of possible answers is initially shown.

                  ShortWhether option is selected by default
                  Comments

                  Use this instead of initial[v] if answerValueSet is present.

                  Control0..1
                  Typeboolean
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summaryfalse
                  Meaning if MissingOnly selected items explicitly marked to be selected
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  208. Questionnaire.item.initial
                  Definition

                  One or more values that should be pre-populated in the answer when initially rendering the questionnaire for user input.

                  ShortInitial value(s) when item is first rendered
                  Comments

                  The user is allowed to change the value and override the default (unless marked as read-only). If the user doesn't change the value, then this initial value will be persisted when the QuestionnaireResponse is initially created. Note that initial values can influence results. The data type of initial[x] must agree with the item.type, and only repeating items can have more then one initial value.

                  Control0..*
                  This element is affected by the following invariants: que-8, que-13
                  TypeBackboneElement
                  Is Modifierfalse
                  Summaryfalse
                  Requirements

                  In some workflows, having defaults saves time.

                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  210. Questionnaire.item.initial.id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  212. Questionnaire.item.initial.extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                  ShortAdditional content defined by implementations
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  214. Questionnaire.item.initial.modifierExtension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

                  Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

                  ShortExtensions that cannot be ignored even if unrecognized
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
                  Summarytrue
                  Requirements

                  Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

                  Alternate Namesextensions, user content, modifiers
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  216. Questionnaire.item.initial.value[x]
                  Definition

                  The actual value to for an initial answer.

                  ShortActual value for initializing the question
                  Comments

                  The type of the initial value must be consistent with the type of the item.

                  Control1..1
                  BindingFor example codes, see QuestionnaireAnswerCodes
                  (example to http://hl7.org/fhir/ValueSet/questionnaire-answers)

                  Allowed values to answer questions.

                  TypeChoice of: boolean, decimal, integer, date, dateTime, time, string, uri, Attachment, Coding, Quantity, Reference(Resource)
                  [x] NoteSeeChoice of Data Typesfor further information about how to use [x]
                  Is Modifierfalse
                  Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
                  Summaryfalse
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  218. Questionnaire.item.initial.value[x].id
                  Definition

                  Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

                  ShortUnique id for inter-element referencing
                  Control0..1
                  Typestring
                  Is Modifierfalse
                  XML FormatIn the XML format, this property is represented as an attribute.
                  Summaryfalse
                  220. Questionnaire.item.initial.value[x].extension
                  Definition

                  May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

                  ShortAdditional content defined by implementations
                  Comments

                  There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

                  Control0..*
                  TypeExtension
                  Is Modifierfalse
                  Summaryfalse
                  Alternate Namesextensions, user content
                  Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                  ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                  SlicingThis element introduces a set of slices on Questionnaire.item.initial.value[x].extension. The slices areUnordered and Open, and can be differentiated using the following discriminators:
                  • value @ url
                  • 222. Questionnaire.item.initial.value[x].extension:xhtml
                    Slice Namexhtml
                    Definition

                    This is an equivalent of the string on which the extension is sent, but includes additional XHTML markup, such as bold, italics, styles, tables, etc. Existing restrictions on XHTML content apply. Note that using markdown allows for greater flexibility of display.

                    ShortString equivalent with html markup
                    Comments

                    For questionnaires, see additional guidance and examples in the SDC implementation guide.

                    Control0..1
                    TypeExtension(XHTML Representation) (Extension Type: string)
                    Is Modifierfalse
                    Summaryfalse
                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
                    ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
                    224. Questionnaire.item.item
                    Definition

                    Text, questions and other groups to be nested beneath a question or group.

                    ShortNested questionnaire items
                    Comments

                    There is no specified limit to the depth of nesting. However, Questionnaire authors are encouraged to consider the impact on the user and user interface of overly deep nesting.

                    Control0..*
                    This element is affected by the following invariants: que-1
                    TypeSeettp://hl7.org/fhir/StructureDefinition/Questionnaire#Questionnaire.item
                    Is Modifierfalse
                    Summaryfalse
                    Requirements

                    Reports can consist of complex nested groups.

                    Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))