Type Alias: R4Equivalence
R4Equivalence =
"relatedto"|"equivalent"|"equal"|"wider"|"subsumes"|"narrower"|"specializes"|"inexact"|"unmatched"|"disjoint"
The verbatim FHIR R4 ConceptMap.group.element.target.equivalence value, carried through
untouched so nothing the map author asserted is lost. (R4 enum:
relatedto | equivalent | equal | wider | subsumes | narrower | specializes | inexact | unmatched | disjoint.)