description: Indicates the Observation.category value(s) that should appear on extracted Observations for the entire Questionnaire or for the current item and descendant items.  If this extension appears at multiple levels in the Questionnaire, those defined on lower-level items override those declared on higher-level items.
package_name: hl7.fhir.uv.sdc.r4b
derivation: constraint
name: ObservationExtractCategory
type: Extension
elements:
  url:
    type: uri
    pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observation-extract-category'}
    index: 0
  value:
    choices: [valueCodeableConcept]
    index: 2
  valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 3}
package_version: 3.0.0
class: extension
kind: complex-type
url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-observation-extract-category
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 3.0.0