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 79ec9869-09a5-415e-99b2-5c574f5de896-395
This  code system http://hl7.org/fhir/comparison/CodeSystem/79ec9869-09a5-415e-99b2-5c574f5de896-395 defines codes, but no codes are represented here