{
  "resourceType" : "CodeSystem",
  "id" : "banff-c4d-score-cs",
  "text" : {
    "status" : "generated",
    "div" : "<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>"
  },
  "url" : "https://hl7.eu/fhir/ig/hl7.eu.fhir.protect-child/CodeSystem/banff-c4d-score-cs",
  "version" : "0.1.0-ci-build",
  "name" : "BanffC4dScoreCS",
  "title" : "Banff C4d Score CodeSystem",
  "status" : "draft",
  "experimental" : true,
  "date" : "2026-09-28T06:51:47+00:00",
  "publisher" : "Protect Child",
  "contact" : [{
    "name" : "Protect Child",
    "telecom" : [{
      "system" : "url",
      "value" : "https://protect-child.eu/"
    }]
  }],
  "description" : "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" : true,
  "content" : "complete",
  "count" : 4,
  "concept" : [{
    "code" : "c4d-0",
    "display" : "C4d0 – negative (0%)",
    "definition" : "No C4d staining (Banff C4d0, negative): 0% of peritubular capillaries (kidney) or portal tracts (liver)."
  },
  {
    "code" : "c4d-1",
    "display" : "C4d1 – minimal (<10%)",
    "definition" : "Minimal C4d staining (Banff C4d1): under 10% of peritubular capillaries (kidney) or portal tracts (liver)."
  },
  {
    "code" : "c4d-2",
    "display" : "C4d2 – focal (10–50%)",
    "definition" : "Focal C4d staining (Banff C4d2): 10–50% of peritubular capillaries (kidney) or portal tracts (liver)."
  },
  {
    "code" : "c4d-3",
    "display" : "C4d3 – diffuse (>50%)",
    "definition" : "Diffuse C4d staining (Banff C4d3): over 50% of peritubular capillaries (kidney) or portal tracts (liver)."
  }]
}