This is the ValueSet that contains all the codes in IHE ClassCode (http://medcomfhir.dk/ig/xdsmetadata/ValueSet/MedCom-ihe-core-classcode-VS) and IHE ClassCode (http://medcomfhir.dk/ig/xdsmetadata/ValueSet/MedCom-ihe-core-classcode-VS). E.g. what you have to deal with if you get resources containing codes in either of them