This is the CodeSystem that contains all the codes in MedComDiagnosticReportCodes (http://medcomfhir.dk/ig/terminology/CodeSystem/MedComDiagnosticReportCodes) and MedComDiagnosticReportCodes (http://medcomfhir.dk/ig/terminology/CodeSystem/MedComDiagnosticReportCodes). E.g. what you have to deal with if you get resources containing codes in either of them