This is the CodeSystem that contains all the codes in QuestionnaireItemUsageMode (http://terminology.hl7.org/CodeSystem/questionnaire-usage-mode) and QuestionnaireItemUsageMode (http://terminology.hl7.org/CodeSystem/questionnaire-usage-mode). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem 0229f20e-bdf6-4558-8625-5d09cf27fb48-1487
This code system http://hl7.org/fhir/comparison/CodeSystem/0229f20e-bdf6-4558-8625-5d09cf27fb48-1487
defines codes, but no codes are represented here