description: This profile applies constraints to the Observation resource for CA Core+ to support standardized documentation of tobacco use in the pan-Canadian context.
package_name: ca.infoway.io.core
derivation: constraint
name: ObservationTobaccoUseCACore
type: Observation
elements:
  status: {mustSupport: true, index: 0}
  category: {type: CodeableConcept, index: 1}
  code:
    type: CodeableConcept
    mustSupport: true
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: 72166-2, system: 'http://loinc.org', display: Tobacco smoking status}
    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]
  encounter:
    type: Reference
    refers: ['http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/encounter-ca-core']
    index: 5
  effective:
    mustSupport: true
    choices: []
    index: 7
  value:
    mustSupport: true
    choices: []
    index: 9
    slicing:
      rules: open
      ordered: false
      discriminator:
      - {path: $this, type: type}
      min: 1
      slices:
        valueCodeableConcept:
          match: {}
          schema:
            mustSupport: true
            choices: [valueCodeableConcept]
            index: 11
          min: 0
          max: 1
  valueCodeableConcept:
    type: CodeableConcept
    mustSupport: true
    choiceOf: value
    index: 12
    slicing:
      slices:
        valueCodeableConcept:
          match: {}
          schema: {type: CodeableConcept, mustSupport: true, choiceOf: value, index: 12}
          min: 0
          max: 1
package_version: 1.0.1-dft-preballot
class: profile
kind: resource
url: http://fhir.infoway-inforoute.ca/cacore/StructureDefinition/observation-tobaccouse-ca-core
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 1.0.0
required: [effective, subject, value]