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