{
  "resourceType": "Observation",
  "id": "bmd",
  "status": "final",
  "code": {
    "coding": [
      {
        "system": "http://loinc.org",
        "code": "24701-5",
        "display": "DXA Femur [Mass/Area] Bone density"
      }
    ],
    "text": "BMD - Left Femur"
  },
  "subject": {
    "reference": "Patient/pat2"
  },
  "performer": [
    {
      "reference": "Organization/1832473e-2fe0-452d-abe9-3cdb9879522f",
      "display": "Acme Imaging Diagnostics"
    }
  ],
  "valueQuantity": {
    "value": 0.887,
    "unit": "g/cm²",
    "system": "http://unitsofmeasure.org",
    "code": "g/cm-2"
  },
  "bodySite": {
    "coding": [
      {
        "system": "http://snomed.info/sct",
        "code": "71341001:272741003\u003d7771000"
      }
    ],
    "text": "Left Femur"
  },
  "meta": {
    "tag": [
      {
        "system": "http://terminology.hl7.org/CodeSystem/v3-ActReason",
        "code": "HTEST",
        "display": "test health data"
      }
    ]
  }
}