FHIR IG analytics

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Source1

{
  "resourceType": "Observation",
  "id": "example-fev1-reference-value",
  "meta": {
    "profile": [
      "https://gematik.de/fhir/hddt/StructureDefinition/hddt-lung-reference-value"
    ]
  },
  "status": "final",
  "valueQuantity": {
    "system": "http://unitsofmeasure.org",
    "value": 4.5,
    "code": "L",
    "unit": "L"
  },
  "code": {
    "coding": [
      {
        "code": "20149-1",
        "system": "http://loinc.org",
        "display": "FEV1 predicted"
      }
    ]
  },
  "effectivePeriod": {
    "start": "2025-05-01"
  },
  "method": {
    "coding": [
      {
        "system": "https://gematik.de/fhir/hddt/CodeSystem/hddt-lung-function-reference-value-method-codes",
        "code": "GLI-2022"
      }
    ]
  },
  "device": {
    "reference": "Device/example-device-peak-flow-meter"
  }
}