<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="concept-map-relationship"/><meta><lastUpdated value="2026-04-03T20:06:10.198+00:00"/></meta><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem concept-map-relationship</b></p><a name="concept-map-relationship"> </a><a name="hcconcept-map-relationship"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/concept-map-relationship</code> defines the following codes in an undefined hierarchy:</p><table class="codes"><tr><td><b>Lvl</b></td><td style="white-space:nowrap"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td>1</td><td style="white-space:nowrap">related-to<a name="concept-map-relationship-related-to"> </a></td><td>Related To</td><td>The concepts are related to each other, but the exact relationship is not known.</td></tr><tr><td>2</td><td style="white-space:nowrap">  equivalent<a name="concept-map-relationship-equivalent"> </a></td><td>Equivalent</td><td>The definitions of the concepts mean the same thing.</td></tr><tr><td>2</td><td style="white-space:nowrap">  source-is-narrower-than-target<a name="concept-map-relationship-source-is-narrower-than-target"> </a></td><td>Source Is Narrower Than Target</td><td>The source concept is narrower in meaning than the target concept.</td></tr><tr><td>2</td><td style="white-space:nowrap">  source-is-broader-than-target<a name="concept-map-relationship-source-is-broader-than-target"> </a></td><td>Source Is Broader Than Target</td><td>The source concept is broader in meaning than the target concept.</td></tr><tr><td>1</td><td style="white-space:nowrap">not-related-to<a name="concept-map-relationship-not-related-to"> </a></td><td>Not Related To</td><td>This is an explicit assertion that the target concept is not related to the source concept.</td></tr></table></div></text><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg"><valueCode value="fhir"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status"><valueCode value="normative"/></extension><extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm"><valueInteger value="3"/></extension><url value="http://hl7.org/fhir/concept-map-relationship"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.4.642.4.1986"/></identifier><version value="6.0.0-ballot4"/><name value="ConceptMapRelationship"/><title value="ConceptMapRelationship"/><status value="active"/><experimental value="false"/><date value="2026-04-03T20:06:10+00:00"/><publisher value="HL7 International / FHIR Infrastructure"/><contact><telecom><system value="url"/><value value="http://www.hl7.org/Special/committees/fiwg"/></telecom></contact><description value="The relationship between concepts."/><jurisdiction><coding><system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/><code value="001"/><display value="World"/></coding></jurisdiction><caseSensitive value="true"/><valueSet value="http://hl7.org/fhir/ValueSet/concept-map-relationship"/><content value="complete"/><concept><code value="related-to"/><display value="Related To"/><definition value="The concepts are related to each other, but the exact relationship is not known."/><concept><code value="equivalent"/><display value="Equivalent"/><definition value="The definitions of the concepts mean the same thing."/></concept><concept><code value="source-is-narrower-than-target"/><display value="Source Is Narrower Than Target"/><definition value="The source concept is narrower in meaning than the target concept."/></concept><concept><code value="source-is-broader-than-target"/><display value="Source Is Broader Than Target"/><definition value="The source concept is broader in meaning than the target concept."/></concept></concept><concept><code value="not-related-to"/><display value="Not Related To"/><definition value="This is an explicit assertion that the target concept is not related to the source concept."/></concept></CodeSystem>