{
  "resourceType" : "Observation",
  "id" : "example-ecg-p-duration",
  "meta" : {
    "profile" : ["http://fhir.tiro.health/StructureDefinition/CardiacMeasurement"]
  },
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: Observation example-ecg-p-duration</b></p><a name=\"example-ecg-p-duration\"> </a><a name=\"hcexample-ecg-p-duration\"> </a><div style=\"display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border: 1px solid #8da1b4; border-radius: 5px; line-height: 60%\"><p style=\"margin-bottom: 0px\"/><p style=\"margin-bottom: 0px\">Profile: <a href=\"StructureDefinition-CardiacMeasurement.html\">Cardiac Measurement</a></p></div><p><b>status</b>: Final</p><p><b>category</b>: <span title=\"Codes:{http://terminology.hl7.org/CodeSystem/observation-category procedure}\">Procedure</span></p><p><b>code</b>: <span title=\"Codes:{http://loinc.org 8632-2}\">P wave duration</span></p><p><b>subject</b>: <a href=\"Patient-ExampleHolterPatient.html\">Anonymous Patient (no stated gender), DoB Unknown ( http://example.org/fhir/patient#example-patient-1)</a></p><p><b>effective</b>: 2026-05-12 09:14:00+0200</p><p><b>value</b>: 98 ms<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  codems = 'ms')</span></p><p><b>method</b>: <span title=\"Codes:{http://snomed.info/sct 29303009}\">Electrocardiographic procedure</span></p></div>"
  },
  "status" : "final",
  "category" : [{
    "coding" : [{
      "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
      "code" : "procedure",
      "display" : "Procedure"
    }]
  }],
  "code" : {
    "coding" : [{
      "system" : "http://loinc.org",
      "code" : "8632-2",
      "display" : "P wave duration"
    }]
  },
  "subject" : {
    "reference" : "Patient/ExampleHolterPatient"
  },
  "effectiveDateTime" : "2026-05-12T09:14:00+02:00",
  "valueQuantity" : {
    "value" : 98,
    "unit" : "ms",
    "system" : "http://unitsofmeasure.org",
    "code" : "ms"
  },
  "method" : {
    "coding" : [{
      "system" : "http://snomed.info/sct",
      "code" : "29303009",
      "display" : "Electrocardiographic procedure"
    }]
  }
}