description: Proposed constraints and extensions on the Observation Resource to support collection of tobacco smoking status information.  Generated as a first step toward creating a set of Canadian Baseline FHIR profiles.
package_name: hl7.fhir.ca.baseline
derivation: constraint
name: ObservationTobaccoSmokingStatusProfile
type: Observation
elements:
  status:
    binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/observation-status'}
    index: 0
  code:
    short: 'Smoking Status: LOINC 72166-2 = Tobacco smoking status NHIS'
    mustSupport: true
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: 72166-2, system: 'http://loinc.org'}
    index: 1
  subject:
    type: Reference
    short: The patient that the smoking status observation refers to
    mustSupport: true
    refers: ['http://hl7.org/fhir/ca/baseline/StructureDefinition/profile-patient']
    index: 2
  effective:
    short: Clinically relevant time/time-period for the smoking status observation
    constraint:
      Obs-1: {human: Observation.effective or Observation.issued SHOULD be present, severity: error, expression: effective.exists() or issued.exists().}
    choices: []
    index: 4
  issued:
    short: Date/Time this version of the smoking status observation was made available
    constraint:
      Obs-1: {human: Observation.effective or Observation.issued SHOULD be present, severity: error, expression: effective.exists() or issued.exists().}
    index: 5
  value:
    short: Coded Responses for Tobacco Smoking Status ValueSet
    mustSupport: true
    choices: [valueCodeableConcept]
    index: 7
  valueCodeableConcept: {type: CodeableConcept, short: Coded Responses for Tobacco Smoking Status ValueSet, mustSupport: true, choiceOf: value, index: 8}
package_version: 1.1.6-pre
class: profile
kind: resource
url: http://hl7.org/fhir/ca/baseline/StructureDefinition/profile-smokingstatus
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 0.2.0
required: [value, subject, valueCodeableConcept]