http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-definitionExtractValue|4.0.0-ballot

description: Provide either a fixed value, or an expression to evaluate, to be used as the value for the extracted resource's property based on the `definition` value.
derivation: constraint
name: DefinitionExtractValueExtension
type: Extension
elements:
  extension:
    index: 0
    slicing:
      slices:
        definition:
          match: {}
          schema:
            short: ElementDefintion to extract value into
            _required: true
            index: 1
            extensions: {}
            elements:
              extension: {index: 2}
              url:
                pattern: {type: Uri, value: definition}
                index: 3
              value:
                short: Profile canonical URL and element id
                choices: []
                index: 5
            required: [value]
        expression:
          match: {}
          schema:
            short: An expression to evaluate
            index: 6
            extensions: {}
            elements:
              extension: {index: 7}
              url:
                pattern: {type: Uri, value: expression}
                index: 8
              value:
                short: Expression value
                choices: []
                index: 10
            required: [value]
        fixed-value:
          match: {}
          schema:
            short: A fixed value to extract
            index: 11
            extensions: {}
            elements:
              extension: {index: 12}
              url:
                pattern: {type: Uri, value: fixed-value}
                index: 13
              value:
                short: Fixed value
                choices: []
                index: 15
            required: [value]
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-definitionExtractValue'}
    index: 16
  value:
    choices: []
    index: 18
extensions:
  definition:
    url: null
    short: ElementDefintion to extract value into
    _required: true
    index: 1
    extensions: {}
    elements:
      extension: {index: 2}
      url:
        pattern: {type: Uri, value: definition}
        index: 3
      value:
        short: Profile canonical URL and element id
        choices: []
        index: 5
    required: [value]
  expression:
    url: null
    short: An expression to evaluate
    index: 6
    extensions: {}
    elements:
      extension: {index: 7}
      url:
        pattern: {type: Uri, value: expression}
        index: 8
      value:
        short: Expression value
        choices: []
        index: 10
    required: [value]
  fixed-value:
    url: null
    short: A fixed value to extract
    index: 11
    extensions: {}
    elements:
      extension: {index: 12}
      url:
        pattern: {type: Uri, value: fixed-value}
        index: 13
      value:
        short: Fixed value
        choices: []
        index: 15
    required: [value]
class: extension
kind: complex-type
url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-definitionExtractValue
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 4.0.0-ballot
required: [extension]