This is the set of resources that conform to either of the profiles Date of Diagnosis Act (http://hl7.org/cda/us/ccda/StructureDefinition/DateOfDiagnosisAct) and Date of Diagnosis Act (http://hl7.org/cda/us/ccda/StructureDefinition/DateOfDiagnosisAct). E.g. what you have to deal with if you get resources conforming to one of them