---
type: "codesystem"
title: "Concept Map Relationship"
codesystem: "concept-map-relationship"
---
# Concept Map Relationship

- **Official URL**: http://hl7.org/fhir/concept-map-relationship
- **Version**: 6.0.0
- **Status**: draft
- **Name**: ConceptMapRelationship
- **Title**: Concept Map Relationship
- **Description**: The relationship between concepts.
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| related-to | Related To | The concepts are related to each other, but the exact relationship is not known. |
| not-related-to | Not Related To | This is an explicit assertion that the target concept is not related to the source concept. |

## CodeSystem XML



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

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="concept-map-relationship"/>
  <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="1"/>
  </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"/>
  <name value="ConceptMapRelationship"/>
  <title value="Concept Map Relationship"/>
  <status value="draft"/>
  <experimental value="false"/>
  <date value="2021-01-05T10:01:24+11:00"/>
  <description value="The relationship between concepts."/>
  <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>
```