This is the CodeSystem that contains all the codes in Narrative Language Control CodeSystem (http://hl7.org/fhir/narrative-language-control) and Narrative Language Control CodeSystem (http://hl7.org/fhir/narrative-language-control). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 24c9701c-27f0-4c6d-bf01-fbf913459322-86
This code system http://hl7.org/fhir/comparison/CodeSystem/24c9701c-27f0-4c6d-bf01-fbf913459322-86 defines codes, but no codes are represented here