Intersection of http://hl7.org/fhir/ValueSet/document-classcodes and http://hl7.org/fhir/us/core/ValueSet/us-core-documentreference-category
This is the ValueSet that contains codes in both Document Class Value Set (http://hl7.org/fhir/ValueSet/document-classcodes) and US Core DocumentReference Category (http://hl7.org/fhir/us/core/ValueSet/us-core-documentreference-category).