Intersection of http://terminology.hl7.org/ValueSet/v3-xDocumentSubject and http://terminology.hl7.org/ValueSet/v3-xDocumentSubject
This is the ValueSet that contains codes in both x_DocumentSubject (http://terminology.hl7.org/ValueSet/v3-xDocumentSubject) and x_DocumentSubject (http://terminology.hl7.org/ValueSet/v3-xDocumentSubject).