<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://simplifier.net/winningtest/reagin-and-treponema-pallidum-igg-and-igm-profile" />
  <name value="ReaginAndTreponemaPallidumIgGAndIgM" />
  <title value="反应素抗体与梅毒螺旋体 抗体.IgG 与 IgM" />
  <status value="draft" />
  <date value="2022-05-12T19:58:38.6201206+00:00" />
  <description value="梅毒螺旋体抗体检查" />
  <fhirVersion value="4.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="Observation" />
  <baseDefinition value="https://simplifier.net/winningtest/laboratory-observation-profile" />
  <derivation value="constraint" />
  <differential>
    <element id="Observation.code">
      <path value="Observation.code" />
      <fixedCodeableConcept>
        <coding>
          <system value="http://loinc.org" />
          <version value="2.71" />
          <code value="73752-8" />
          <display value="Reagin Ab &amp; Treponema pallidum Ab.IgG &amp; IgM" />
        </coding>
      </fixedCodeableConcept>
    </element>
    <element id="Observation.value[x]">
      <path value="Observation.value[x]" />
      <type>
        <code value="CodeableConcept" />
      </type>
      <type>
        <code value="string" />
      </type>
      <binding>
        <strength value="preferred" />
        <description value="Pos|Neg" />
        <valueSet value="https://loinc.org/LL360-9/" />
      </binding>
    </element>
  </differential>
</StructureDefinition>