This is the CodeSystem that contains codes in both StatisticStudyType (http://terminology.hl7.org/CodeSystem/study-type) and StatisticStudyType (http://terminology.hl7.org/CodeSystem/study-type).
Generated Narrative: CodeSystem 818959f7-0f8d-4f6f-b46c-7c5a5833d862-891
This code system http://hl7.org/fhir/comparison/CodeSystem/818959f7-0f8d-4f6f-b46c-7c5a5833d862-891 defines codes, but no codes are represented here