haau3 FHIR Implementation Guide (HFIG) - Local Development build (v1.0.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

• Narrative Content
• XML
• JSON
• TTL

: Example US Core Lab - JSON Representation

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{
  "resourceType" : "Observation",
  "id" : "us-core-observation-lab",
  "meta" : {
    "profile" : [
      🔗 "http://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-lab|6.1.0"
    ]
  },
  "text" : {
    "status" : "generated",
    "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: Observation us-core-observation-lab</b></p><a name=\"us-core-observation-lab\"> </a><a name=\"hcus-core-observation-lab\"> </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=\"http://hl7.org/fhir/us/core/STU6.1/StructureDefinition-us-core-observation-lab.html\">US Core Laboratory Result Observation Profile</a> version: 6.1.0</p></div><p><b>status</b>: Final</p><p><b>category</b>: <span title=\"Codes:{http://terminology.hl7.org/CodeSystem/observation-category laboratory}\">Laboratory</span></p><p><b>code</b>: <span title=\"Codes:{http://loinc.org 4548-4}\">Hemoglobin A1c</span></p><p><b>subject</b>: <a href=\"Patient-us-core-patient.html\">Derrick Lin  Male, DoB: 1965-04-12 ( Medical record number\u00a0(use:\u00a0usual,\u00a0))</a></p><p><b>effective</b>: 2026-05-01 09:15:00+0000</p><p><b>value</b>: 7.1 %<span style=\"background: LightGoldenRodYellow\"> (Details: UCUM  code% = '%')</span></p></div>"
  },
  "status" : "final",
  "category" : [
    {
      "coding" : [
        {
          "system" : "http://terminology.hl7.org/CodeSystem/observation-category",
          "code" : "laboratory",
          "display" : "Laboratory"
        }
      ]
    }
  ],
  "code" : {
    "coding" : [
      {
        "system" : "http://loinc.org",
        "code" : "4548-4",
        "display" : "Hemoglobin A1c/Hemoglobin.total in Blood"
      }
    ],
    "text" : "Hemoglobin A1c"
  },
  "subject" : {
    🔗 "reference" : "Patient/us-core-patient"
  },
  "effectiveDateTime" : "2026-05-01T09:15:00Z",
  "valueQuantity" : {
    "value" : 7.1,
    "unit" : "%",
    "system" : "http://unitsofmeasure.org",
    "code" : "%"
  }
}