description: Specifies a query or other expression that identifies the resource (or set of resources for a repeating item) to be extracted from this item once the QuestionnaireResponse is complete.
package_name: hl7.fhir.uv.sdc.r4b
derivation: constraint
name: ItemExtractionContextExtension
type: Extension
elements:
  url:
    type: uri
    pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-itemExtractionContext'}
    index: 0
  value:
    choices: [valueExpression, valueCode]
    index: 2
  valueExpression: {type: Expression, choiceOf: value, index: 3}
  valueCode: {type: code, choiceOf: value, index: 4}
package_version: 3.0.0
class: extension
kind: complex-type
url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-itemExtractionContext
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 3.0.0