This is the CodeSystem that contains all the codes in questionnaire item usage mode (http://hl7.org/fhir/questionnaire-usage-mode) and questionnaire item usage mode code system (http://hl7.org/fhir/questionnaire-usage-mode). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 5dc6e6ac-f2b5-4b67-9051-62dc8933b91a-86
This code system http://hl7.org/fhir/comparison/CodeSystem/5dc6e6ac-f2b5-4b67-9051-62dc8933b91a-86
defines codes, but no codes are represented here