Union of http://hl7.org/fhir/ValueSet/questionnaire-derivationType and http://hl7.org/fhir/ValueSet/questionnaire-derivationType

This is the ValueSet that contains all the codes in Questionnaire Derivation Type Valueset (http://hl7.org/fhir/ValueSet/questionnaire-derivationType) and Questionnaire Derivation Type Valueset (http://hl7.org/fhir/ValueSet/questionnaire-derivationType). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem