This is the CodeSystem that contains all the codes in CommunicationNotDoneReason (http://terminology.hl7.org/CodeSystem/communication-not-done-reason) and CommunicationNotDoneReason (http://terminology.hl7.org/CodeSystem/communication-not-done-reason). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem c5f0ac35-f5d9-465b-8c01-0cd6ea3b8212-212
This code system http://hl7.org/fhir/comparison/CodeSystem/c5f0ac35-f5d9-465b-8c01-0cd6ea3b8212-212 defines codes, but no codes are represented here