description: The CQL Evaluation Result profile supports using the dataAbsentReason extension to indicate null evaluation results from operations.
package_name: hl7.fhir.uv.cql
derivation: constraint
name: CQLEvaluationResult
type: Parameters
elements:
  parameter:
    mustSupport: true
    index: 0
    extensions:
      cqlType: {url: 'http://hl7.org/fhir/StructureDefinition/cqf-cqlType', min: 0, max: 1, type: Extension, mustSupport: true, index: 1}
    elements:
      extension:
        type: Extension
        mustSupport: true
        url: http://hl7.org/fhir/StructureDefinition/cqf-cqlType
        index: 1
        slicing:
          slices:
            cqlType:
              match: {}
              schema: {type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/StructureDefinition/cqf-cqlType', index: 1}
              min: 0
              max: 1
      name: {mustSupport: true, index: 2}
      value:
        mustSupport: true
        choices: []
        index: 4
      value[x]:
        extensions:
          dataAbsentReason:
            url: http://hl7.org/fhir/StructureDefinition/data-absent-reason
            type: Extension
            mustSupport: true
            index: 5
            elements:
              valueCode:
                type: code
                pattern: {type: Code, value: unknown}
                index: 6
            required: [valueCode]
          isEmptyList: {url: 'http://hl7.org/fhir/StructureDefinition/cqf-isEmptyList', min: 0, max: 1, type: Extension, mustSupport: true, index: 7}
        elements:
          extension:
            type: Extension
            mustSupport: true
            url: http://hl7.org/fhir/StructureDefinition/data-absent-reason
            index: 5
            slicing:
              slices:
                dataAbsentReason:
                  match: {}
                  schema:
                    type: Extension
                    mustSupport: true
                    url: http://hl7.org/fhir/StructureDefinition/data-absent-reason
                    index: 5
                    elements:
                      valueCode:
                        type: code
                        pattern: {type: Code, value: unknown}
                        index: 6
                    required: [valueCode]
                isEmptyList:
                  match: {}
                  schema: {type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/StructureDefinition/cqf-isEmptyList', index: 7}
                  min: 0
                  max: 1
package_version: 2.0.0-ballot
class: profile
kind: resource
url: http://hl7.org/fhir/uv/cql/StructureDefinition/cql-evaluationresult
base: http://hl7.org/fhir/StructureDefinition/Parameters
version: 2.0.0-ballot