This is the CodeSystem that contains all the codes in MedCom Message Codes (urn:oid:1.2.208.184.100.1) and MedCom Message Codes (urn:oid:1.2.208.184.100.1). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 9a7cf755-6660-4bf2-8d21-8adc4c0704b8-431
This code system http://hl7.org/fhir/comparison/CodeSystem/9a7cf755-6660-4bf2-8d21-8adc4c0704b8-431 defines codes, but no codes are represented here