<?xml version="1.0" encoding="UTF-8"?>

<Observation xmlns="http://hl7.org/fhir">
  <id value="RECISTTargetLesionObservationExample"/>
  <meta>
    <profile value="https://nshr-uat.sha.go.ke/fhir/StructureDefinition/nccp-recist-target-lesion-observation"/>
  </meta>
  <language value="en"/>
  <text>
    <status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p>RECIST target lesion measurement of left axillary lymph node at week 8 (after 2 AC cycles): 18 mm</p></div>
  </text>
  <extension url="https://nshr-uat.sha.go.ke/fhir/StructureDefinition/nccp-recist-target-lesion-id-extension">
    <valueString value="TL-001"/>
  </extension>
  <extension url="https://nshr-uat.sha.go.ke/fhir/StructureDefinition/nccp-recist-timepoint-extension">
    <valueCode value="WEEK-8"/>
  </extension>
  <status value="final"/>
  <category>
    <coding>
      <system value="http://terminology.hl7.org/CodeSystem/observation-category"/>
      <code value="imaging"/>
      <display value="Imaging"/>
    </coding>
  </category>
  <code>
    <coding>
      <system value="https://nshr-uat.sha.go.ke/fhir/CodeSystem/sha-interventions-cs"/>
      <code value="SHA-IMAGING"/>
      <display value="SHA: Oncology Diagnostic Imaging"/>
    </coding>
  </code>
  <subject>
    <reference value="Patient/example-patient"/>
  </subject>
  <effectiveDateTime value="2026-03-15"/>
  <performer>
    <reference value="Practitioner/example-practitioner"/>
  </performer>
  <valueQuantity>
    <value value="18"/>
    <unit value="mm"/>
    <system value="http://unitsofmeasure.org"/>
    <code value="mm"/>
  </valueQuantity>
  <bodySite>
    <coding>
      <system value="https://nshr-uat.sha.go.ke/fhir/CodeSystem/cancer-primary-site-cs"/>
      <code value="BREAST"/>
      <display value="Breast"/>
    </coding>
  </bodySite>
</Observation>