This is the CodeSystem that contains codes in both EvidenceDirectness (http://terminology.hl7.org/CodeSystem/directness) and EvidenceDirectness (http://terminology.hl7.org/CodeSystem/directness).
Generated Narrative: CodeSystem 21d0d52d-6932-4516-ad29-944d62abcb69-891
This code system http://hl7.org/fhir/comparison/CodeSystem/21d0d52d-6932-4516-ad29-944d62abcb69-891
defines codes, but no codes are represented here