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. This extension is deprecated in favor of the `DefinitionExtractExtension` extension.
package_name: hl7.fhir.uv.sdc.r4b
derivation: constraint
name: ItemExtractionContextExtension
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-itemExtractionContext'}
    index: 1
  value:
    choices: [valueCode, valueExpression]
    index: 3
  valueCode: {type: code, choiceOf: value, index: 4}
  valueExpression: {type: Expression, choiceOf: value, index: 5}
package_version: 4.0.0-ballot
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-itemExtractionContext
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 4.0.0-ballot