PROTECT-CHILD Pediatric Transplant Data Implementation Guide, published by Protect Child. This guide is not an authorized publication; it is the continuous build for version 0.1.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7-eu/protect-child/ and changes regularly. See the Directory of published versions

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: Banff C4d Score CodeSystem - XML Representation

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="banff-c4d-score-cs"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem banff-c4d-score-cs</b></p><a name="banff-c4d-score-cs"> </a><a name="hcbanff-c4d-score-cs"> </a><p>This case-sensitive code system <code>https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/banff-c4d-score-cs</code> defines the following codes:</p><table class="codes"><tr><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style="white-space:nowrap">c4d-0<a name="banff-c4d-score-cs-c4d-0"> </a></td><td>C4d0 – negative (0%)</td><td>No C4d staining (Banff C4d0, negative): 0% of peritubular capillaries (kidney) or portal tracts (liver).</td></tr><tr><td style="white-space:nowrap">c4d-1<a name="banff-c4d-score-cs-c4d-1"> </a></td><td>C4d1 – minimal (&lt;10%)</td><td>Minimal C4d staining (Banff C4d1): under 10% of peritubular capillaries (kidney) or portal tracts (liver).</td></tr><tr><td style="white-space:nowrap">c4d-2<a name="banff-c4d-score-cs-c4d-2"> </a></td><td>C4d2 – focal (10–50%)</td><td>Focal C4d staining (Banff C4d2): 10–50% of peritubular capillaries (kidney) or portal tracts (liver).</td></tr><tr><td style="white-space:nowrap">c4d-3<a name="banff-c4d-score-cs-c4d-3"> </a></td><td>C4d3 – diffuse (&gt;50%)</td><td>Diffuse C4d staining (Banff C4d3): over 50% of peritubular capillaries (kidney) or portal tracts (liver).</td></tr></table></div>
  </text>
  <url
       value="https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/banff-c4d-score-cs"/>
  <version value="0.1.0-ci-build"/>
  <name value="BanffC4dScoreCS"/>
  <title value="Banff C4d Score CodeSystem"/>
  <status value="draft"/>
  <experimental value="true"/>
  <date value="2026-09-28T06:51:47+00:00"/>
  <publisher value="Protect Child"/>
  <contact>
    <name value="Protect Child"/>
    <telecom>
      <system value="url"/>
      <value value="https://protect-child.eu/"/>
    </telecom>
  </contact>
  <description
               value="Banff C4d score: the extent of C4d staining in peritubular capillaries (kidney) or the portal microvasculature (liver). The DMv1.2 boolean ihc_if_c4d maps to c4d-0 (false) or c4d-1..c4d-3 (true)."/>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <count value="4"/>
  <concept>
    <code value="c4d-0"/>
    <display value="C4d0 – negative (0%)"/>
    <definition
                value="No C4d staining (Banff C4d0, negative): 0% of peritubular capillaries (kidney) or portal tracts (liver)."/>
  </concept>
  <concept>
    <code value="c4d-1"/>
    <display value="C4d1 – minimal (&lt;10%)"/>
    <definition
                value="Minimal C4d staining (Banff C4d1): under 10% of peritubular capillaries (kidney) or portal tracts (liver)."/>
  </concept>
  <concept>
    <code value="c4d-2"/>
    <display value="C4d2 – focal (10–50%)"/>
    <definition
                value="Focal C4d staining (Banff C4d2): 10–50% of peritubular capillaries (kidney) or portal tracts (liver)."/>
  </concept>
  <concept>
    <code value="c4d-3"/>
    <display value="C4d3 – diffuse (&gt;50%)"/>
    <definition
                value="Diffuse C4d staining (Banff C4d3): over 50% of peritubular capillaries (kidney) or portal tracts (liver)."/>
  </concept>
</CodeSystem>