description: The CQL Group Definition profile defines conformance expectations for the use of a FHIR Group resource as a cohort definition using Clinical Quality Language (CQL) to define membership criteria. This profile is intended to be consistent with and able to be used as a cohort definition in other similar efforts including clinical trial eligibility in the Evidence-based Medicine on FHIR space, as well as the Bulk Cohort API cohort definition profile.
package_name: hl7.fhir.uv.cql
derivation: constraint
name: CQLGroupDefiition
type: Group
elements:
  extension:
    type: Extension
    mustSupport: true
    url: http://hl7.org/fhir/StructureDefinition/artifact-url
    index: 0
    slicing:
      slices:
        url:
          match: {}
          schema: {type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/StructureDefinition/artifact-url', index: 0}
          min: 0
          max: 1
        version:
          match: {}
          schema: {type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/StructureDefinition/artifact-version', index: 1}
          min: 0
          max: 1
        cqlOptions:
          match: {}
          schema:
            type: Extension
            mustSupport: true
            url: http://hl7.org/fhir/StructureDefinition/cqf-cqlOptions
            index: 2
            elements:
              value:
                choices: [valueReference]
                index: 4
              valueReference:
                type: Reference
                choiceOf: value
                refers: ['http://hl7.org/fhir/uv/cql/StructureDefinition/cql-options']
                index: 5
            required: [valueReference, value]
        cqlLibrary:
          match: {}
          schema:
            type: Extension
            mustSupport: true
            url: http://hl7.org/fhir/StructureDefinition/cqf-library
            index: 6
            elements:
              value:
                choices: [valueCanonical]
                index: 8
              valueCanonical: {type: canonical, choiceOf: value, index: 9}
            required: [valueCanonical, value]
        characteristicExpression:
          match: {}
          schema:
            type: Extension
            mustSupport: true
            url: http://hl7.org/fhir/StructureDefinition/characteristicExpression
            index: 10
            elements:
              value:
                mustSupport: true
                choices: [valueExpression]
                index: 12
              valueExpression: {type: Expression, mustSupport: true, choiceOf: value, index: 13}
            required: [valueExpression, value]
  actual:
    pattern: {type: Boolean, value: false}
    index: 14
  code:
    short: Type of individual the cohort is made up of
    binding: {strength: extensible, valueSet: 'http://hl7.org/fhir/ValueSet/subject-type'}
    mustSupport: true
    index: 15
  characteristic: {short: Not allowed, index: 16}
  member: {short: Not allowed, index: 17}
package_version: 3.0.0-ballot
extensions:
  url: {url: 'http://hl7.org/fhir/StructureDefinition/artifact-url', min: 0, max: 1, type: Extension, mustSupport: true, index: 0}
  version: {url: 'http://hl7.org/fhir/StructureDefinition/artifact-version', min: 0, max: 1, type: Extension, mustSupport: true, index: 1}
  cqlOptions:
    url: http://hl7.org/fhir/StructureDefinition/cqf-cqlOptions
    type: Extension
    mustSupport: true
    index: 2
    elements:
      value:
        choices: [valueReference]
        index: 4
      valueReference:
        type: Reference
        choiceOf: value
        refers: ['http://hl7.org/fhir/uv/cql/StructureDefinition/cql-options']
        index: 5
    required: [valueReference, value]
  cqlLibrary:
    url: http://hl7.org/fhir/StructureDefinition/cqf-library
    type: Extension
    mustSupport: true
    index: 6
    elements:
      value:
        choices: [valueCanonical]
        index: 8
      valueCanonical: {type: canonical, choiceOf: value, index: 9}
    required: [valueCanonical, value]
  characteristicExpression:
    url: http://hl7.org/fhir/StructureDefinition/characteristicExpression
    type: Extension
    mustSupport: true
    index: 10
    elements:
      value:
        mustSupport: true
        choices: [valueExpression]
        index: 12
      valueExpression: {type: Expression, mustSupport: true, choiceOf: value, index: 13}
    required: [valueExpression, value]
class: profile
kind: resource
url: http://hl7.org/fhir/uv/cql/StructureDefinition/cql-groupdefinition
base: http://hl7.org/fhir/StructureDefinition/Group
version: 3.0.0-ballot