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 - XML Representation

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<Observation xmlns="http://hl7.org/fhir">
  <id value="us-core-observation-lab"/>
  <meta>
    <profile
             value="http://hl7.org/fhir/us/core/StructureDefinition/us-core-observation-lab|6.1.0"/>
  </meta>
  <text>
    <status value="generated"/>
    <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 (use: usual, ))</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>
  </text>
  <status value="final"/>
  <category>
    <coding>
      <system
              value="http://terminology.hl7.org/CodeSystem/observation-category"/>
      <code value="laboratory"/>
      <display value="Laboratory"/>
    </coding>
  </category>
  <code>
    <coding>
      <system value="http://loinc.org"/>
      <code value="4548-4"/>
      <display value="Hemoglobin A1c/Hemoglobin.total in Blood"/>
    </coding>
    <text value="Hemoglobin A1c"/>
  </code>
  <subject>🔗 
    <reference value="Patient/us-core-patient"/>
  </subject>
  <effectiveDateTime value="2026-05-01T09:15:00Z"/>
  <valueQuantity>
    <value value="7.1"/>
    <unit value="%"/>
    <system value="http://unitsofmeasure.org"/>
    <code value="%"/>
  </valueQuantity>
</Observation>