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Source1

{
  "resourceType": "Observation",
  "id": "mii-exa-kardio-lvef",
  "meta": {
    "profile": [
      "https://www.medizininformatik-initiative.de/fhir/ext/modul-kardio/StructureDefinition/mii-pr-kardio-linksventrikulaere-ejektionsfraktion"
    ]
  },
  "identifier": [
    {
      "system": "http://hospital.example.org/observation-lvef",
      "value": "lvef-123456"
    }
  ],
  "basedOn": [
    {
      "display": "Echokardiographie: Beispielanforderung"
    }
  ],
  "partOf": [
    {
      "display": "Echokardiographie: Beispieluntersuchung"
    }
  ],
  "category": [
    {
      "coding": [
        {
          "code": "imaging",
          "system": "http://terminology.hl7.org/CodeSystem/observation-category",
          "display": "Imaging"
        }
      ]
    }
  ],
  "code": {
    "coding": [
      {
        "code": "250908004",
        "system": "http://snomed.info/sct",
        "version": "http://snomed.info/sct/900000000000207008/version/20240701",
        "display": "Left ventricular ejection fraction (observable entity)"
      },
      {
        "code": "10230-1",
        "system": "http://loinc.org",
        "display": "Left ventricular ejection fraction"
      }
    ],
    "text": "Linksventrikuläre Ejektionsfraktion"
  },
  "subject": {
    "display": "Beispielpatient"
  },
  "encounter": {
    "display": "Beispielfall"
  },
  "performer": [
    {
      "display": "Beispielarzt"
    }
  ],
  "valueQuantity": {
    "unit": "percent",
    "system": "http://unitsofmeasure.org",
    "code": "%",
    "value": 55
  },
  "interpretation": [
    {
      "coding": [
        {
          "code": "N",
          "system": "http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation",
          "display": "Normal"
        }
      ]
    }
  ],
  "bodySite": {
    "coding": [
      {
        "code": "87878005",
        "system": "http://snomed.info/sct",
        "version": "http://snomed.info/sct/900000000000207008/version/20240701",
        "display": "Left cardiac ventricular structure (body structure)"
      }
    ],
    "text": "Linker Ventrikel"
  },
  "method": {
    "coding": [
      {
        "code": "40701008",
        "system": "http://snomed.info/sct",
        "version": "http://snomed.info/sct/900000000000207008/version/20240701",
        "display": "Echocardiography"
      }
    ],
    "text": "Echokardiographie"
  },
  "device": {
    "display": "Philips EPIQ CVx Ultrasound System"
  },
  "referenceRange": [
    {
      "low": {
        "value": 50,
        "unit": "%",
        "system": "http://unitsofmeasure.org",
        "code": "%"
      },
      "text": "Normal"
    },
    {
      "low": {
        "value": 41,
        "unit": "%",
        "system": "http://unitsofmeasure.org",
        "code": "%"
      },
      "high": {
        "value": 49,
        "unit": "%",
        "system": "http://unitsofmeasure.org",
        "code": "%"
      },
      "text": "Mildly reduced"
    },
    {
      "high": {
        "value": 40,
        "unit": "%",
        "system": "http://unitsofmeasure.org",
        "code": "%"
      },
      "text": "Reduced"
    }
  ],
  "status": "final",
  "effectiveDateTime": "2025-05-12T10:15:00+01:00"
}