Extension 
url 
value[x] Binding: ?? (required): One of the resource types defined as part of this version of FHIR.
Documentation for this formatThis is the set of resources that conform to both Questionnaire Reference Resource (http://hl7.org/fhir/StructureDefinition/questionnaire-referenceResource) and Questionnaire Reference Resource (http://hl7.org/fhir/StructureDefinition/questionnaire-referenceResource).
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension | 0..* | Allowed resource for reference | ||
| url | 1..1 | uri | identifies the meaning of the extension | |
| value[x] | 1..1 | code | Value of extension Binding: ?? (required): One of the resource types defined as part of this version of FHIR. | |
| Documentation for this format | ||||