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

description: Defines elements that support auto-population and pre-population of questionnaires using the Expression-based population mechanism
derivation: constraint
name: SDCQuestionnairePopulateExpression
type: Questionnaire
elements:
  extension:
    mustSupport: false
    array: true
    index: 0
    slicing:
      slices:
        library:
          match: {}
          schema: {mustSupport: false, array: true, index: 0}
          min: 0
        launchContext:
          match: {}
          schema: {mustSupport: true, array: true, index: 1}
          min: 0
        itemPopulationContext:
          match: {}
          schema: {mustSupport: true, index: 2}
          min: 0
          max: 1
        variable:
          match: {}
          schema: {mustSupport: true, array: true, index: 3}
          min: 0
  item:
    constraint:
      sdc-pop-1: {human: An item cannot have both initial.value and initialExpression, source: 'http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-pop-exp', severity: error, expression: 'initial.empty() or extension(''http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-initialExpression'').empty()'}
    index: 4
    extensions:
      isSubject: {url: null, min: 0, max: 1, index: 13}
      itemHidden: {url: null, min: 0, max: 1, index: 11}
      candidateExpression: {url: null, min: 0, max: 1, index: 9}
      unit: {url: null, min: 0, max: 1, mustSupport: true, index: 5}
      initialExpression: {url: null, min: 0, max: 1, index: 8}
      itemPopulationContext: {url: null, min: 0, max: 1, mustSupport: true, index: 6}
      contextExpression: {url: null, min: 0, array: true, index: 10}
      choiceColumn: {url: null, min: 0, array: true, index: 12}
      itemVariable: {url: null, min: 0, array: true, index: 7}
    elements:
      extension:
        mustSupport: true
        index: 5
        slicing:
          slices:
            isSubject:
              match: {}
              schema: {index: 13}
              min: 0
              max: 1
            itemHidden:
              match: {}
              schema: {index: 11}
              min: 0
              max: 1
            candidateExpression:
              match: {}
              schema: {index: 9}
              min: 0
              max: 1
            unit:
              match: {}
              schema: {mustSupport: true, index: 5}
              min: 0
              max: 1
            initialExpression:
              match: {}
              schema: {index: 8}
              min: 0
              max: 1
            itemPopulationContext:
              match: {}
              schema: {mustSupport: true, index: 6}
              min: 0
              max: 1
            contextExpression:
              match: {}
              schema: {array: true, index: 10}
              min: 0
            choiceColumn:
              match: {}
              schema: {array: true, index: 12}
              min: 0
            itemVariable:
              match: {}
              schema: {array: true, index: 7}
              min: 0
extensions:
  library: {url: null, min: 0, mustSupport: false, array: true, index: 0}
  launchContext: {url: null, min: 0, mustSupport: true, array: true, index: 1}
  itemPopulationContext: {url: null, min: 0, max: 1, mustSupport: true, index: 2}
  variable: {url: null, min: 0, mustSupport: true, array: true, index: 3}
class: profile
kind: resource
url: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-pop-exp
base: http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnairecommon
version: 4.0.0-ballot