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 a437c379-0038-48cc-b1c9-1d5230212c57-395
This code system http://hl7.org/fhir/comparison/CodeSystem/a437c379-0038-48cc-b1c9-1d5230212c57-395 defines codes, but no codes are represented here