description: Defines constraints and extensions on the Observation  resource for the minimal set of data to query and retrieve patient's Smoking Status information.
package_name: hl7.fhir.us.core
derivation: constraint
name: US Core Smoking Status Observation Profile
type: Observation
elements:
  status: {isModifier: false, mustSupport: true, index: 0}
  code:
    isModifier: false
    short: 'Smoking Status: LOINC 72166-2  = Tobacco smoking status NHIS'
    type: CodeableConcept
    mustSupport: true
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: 72166-2, system: 'http://loinc.org'}
    index: 1
  subject:
    isModifier: false
    refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient']
    type: Reference
    mustSupport: true
    index: 2
  issued: {isModifier: false, mustSupport: true, index: 3}
  valueCodeableConcept: {isModifier: false, short: Coded Responses from Smoking Status Value Set, type: CodeableConcept, mustSupport: true, index: 4}
package_version: 2.0.0
class: profile
kind: resource
url: http://hl7.org/fhir/us/core/StructureDefinition/us-core-smokingstatus
base: http://hl7.org/fhir/StructureDefinition/Observation
version: 2.0.0
required: [issued, status, subject, valueCodeableConcept, code]