Extension 
url 
value[x] Binding: ?? (required)
valueBoolean
valueCode Documentation for this formatThis is the set of resources that conform to either of the profiles Extract Observation (http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationExtract) and Extract Observation (http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observationExtract). E.g. what you have to deal with if you get resources conforming to one of them
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension | 0..1 | Marks an item (or all items in a questionnaire) to be extracted using the observation-based approach | ||
| url | 1..1 | uri | identifies the meaning of the extension | |
| value[x] | 0..1 | Value of extension Binding: ?? (required) | ||
| valueBoolean | boolean | |||
| valueCode | code | |||
| Documentation for this format | ||||