{
  "resourceType": "Observation",
  "id": "ncdhc-observation-bi-tobacco-usage-example",
  "meta": {
    "versionId": "1",
    "lastUpdated": "2020-02-11T14:36:03Z",
    "profile": [
      "http://hl7.org.au/fhir/ch/v1/StructureDefinition/ncdhc-observation-bi-tobacco-usage"
    ]
  },
  "status": "final",
  "code": {
    "coding": [
      {
        "system": "http://snomed.info/sct",
        "code": "771155005"
      }
    ],
    "text": "Tobacco smoking status"
  },
  "subject": {
    "reference": "Patient/ncdhc-patient-expectant-mother-example",
    "display": "Eve Bill"
  },
  "effectiveDateTime": "2020-02-11T14:36:03Z",
  "performer": [
    {
      "reference": "Practitioner/examiner-practitioner",
      "display": "Examiner"
    },
    {
      "reference": "Organization/examiner-organization",
      "display": "Organisation"
    }
  ],
  "valueCodeableConcept": {
    "coding": [
      {
        "system": "http://snomed.info/sct",
        "code": "443938003",
        "display": "Procedure carried out on subject"
      }
    ]
  },
  "interpretation": {
    "coding": [
      {
        "system": "http://snomed.info/sct",
        "code": "428041000124106",
        "display": "Occasional tobacco smoker"
      }
    ]
  },
  "component": [
    {
      "code": {
        "coding": [
          {
            "system": "http://snomed.info/sct",
            "code": "1368921000168102",
            "display": "Cigarettes per day"
          }
        ]
      },
      "valueQuantity": {
        "value": 10,
        "unit": "per day",
        "system": "http://unitsofmeasure.org",
        "code": "/d"
      }
    },
    {
      "code": {
        "coding": [
          {
            "system": "http://snomed.info/sct",
            "code": "160625004",
            "display": "Date ceased smoking"
          }
        ]
      },
      "valueDateTime": "2019-12-27T16:13:03Z"
    }
  ]
}