Intersection of http://ehealth.sundhed.dk/vs/document-type and http://ehealth.sundhed.dk/vs/ehealth-document-reference-type
This is the ValueSet that contains codes in both Document Type (http://ehealth.sundhed.dk/vs/document-type) and EHealthDocumentReference Type (http://ehealth.sundhed.dk/vs/ehealth-document-reference-type).