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 3b0b76c0-bfb6-4c54-88ed-ebc1ae8e03f7-86
This code system http://hl7.org/fhir/comparison/CodeSystem/3b0b76c0-bfb6-4c54-88ed-ebc1ae8e03f7-86
defines codes, but no codes are represented here