This is the CodeSystem that contains all the codes in PCT Identifier Type (http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTIdentifierType) and PCT Identifier Type (http://hl7.org/fhir/us/davinci-pct/CodeSystem/PCTIdentifierType). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 2b9d5f7c-5853-40f4-8f19-61243f549ec3-23
This code system http://hl7.org/fhir/comparison/CodeSystem/2b9d5f7c-5853-40f4-8f19-61243f549ec3-23
defines codes, but no codes are represented here