valueSet property
valueSet The set of concepts from the ConceptMap.group.target code system which are all being mapped to as part of this mapping rule. The effect of using this data element is the same as having multiple ConceptMap.group.element.target elements with one for each concept in the ConceptMap.group.element.target.valueSet value set.
Implementation
FhirCanonical? get valueSet => throw _privateConstructorUsedError;