description: This profile applies constraints to the Observation resource for CA Core+ to support structured documentation of alcohol use in the pan-Canadian context.
package_name: ca.infoway.io.core
derivation: constraint
name: ObservationAlcoholUseCACore
type: Observation
elements:
  category: {type: CodeableConcept, index: 1}
  encounter:
    type: Reference
    refers: ['http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/encounter-ca-core']
    index: 5
  valueQuantity: {type: Quantity, mustSupport: true, choiceOf: value, index: 11}
  value:
    mustSupport: true
    choices: [valueQuantity]
    index: 10
  component: {index: 12}
  effective[x]:
    extensions:
      data-absent-reason: {url: 'http://hl7.org/fhir/StructureDefinition/data-absent-reason', min: 0, max: 1, short: 'effective[x] absence reason', type: Extension, mustSupport: true, index: 8}
    elements:
      extension:
        short: effective[x] absence reason
        type: Extension
        mustSupport: true
        url: http://hl7.org/fhir/StructureDefinition/data-absent-reason
        index: 8
        slicing:
          slices:
            data-absent-reason:
              match: {}
              schema: {short: 'effective[x] absence reason', type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/StructureDefinition/data-absent-reason', index: 8}
              min: 0
              max: 1
  status: {mustSupport: true, index: 0}
  effective:
    mustSupport: true
    choices: []
    index: 7
  code:
    type: CodeableConcept
    mustSupport: true
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: 74013-4, system: 'http://loinc.org', display: Alcoholic drinks per day}
    index: 2
  subject:
    type: Reference
    mustSupport: true
    refers: ['http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/patient-ca-core']
    index: 3
    elements:
      reference: {mustSupport: true, index: 4}
    required: [reference]
package_version: 1.0.0-dft-preballot
class: profile
kind: resource
url: http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/observation-alcoholuse-ca-core
base: http://hl7.org/fhir/StructureDefinition/Observation
version: null
required: [value, subject, valueQuantity, effective]