---
type: "codesystem"
title: "Code Search Support"
codesystem: "code-search-support"
---
# Code Search Support

- **Official URL**: http://hl7.org/fhir/code-search-support
- **Version**: 6.0.0
- **Status**: active
- **Name**: CodeSearchSupport
- **Title**: Code Search Support
- **Publisher**: HL7 (FHIR Project)
- **Description**: The degree to which the server supports the code search parameter on ValueSet, if it is supported.
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| in-compose | In Compose | The search for code on ValueSet returns ValueSet resources where the code is included in the extensional definition of the ValueSet. |
| in-expansion | In Expansion | The search for code on ValueSet returns ValueSet resources where the code is contained in the  ValueSet expansion. |
| in-compose-or-expansion | In Compose Or Expansion | The search for code on ValueSet returns ValueSet resources where the code is included in the extensional definition or contained in the ValueSet expansion. |

## CodeSystem XML



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

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="code-search-support"/>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="vocab"/>
  </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/code-search-support"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.861"/>
  </identifier>
  <version value="6.0.0"/>
  <name value="CodeSearchSupport"/>
  <title value="Code Search Support"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2022-08-31T10:21:22+10:00"/>
  <publisher value="HL7 (FHIR Project)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="fhir@lists.hl7.org"/>
    </telecom>
  </contact>
  <description value="The degree to which the server supports the code search parameter on ValueSet, if it is supported."/>
  <caseSensitive value="true"/>
  <valueSet value="http://hl7.org/fhir/ValueSet/code-search-support"/>
  <content value="complete"/>
  <concept>
    <code value="in-compose"/>
    <display value="In Compose"/>
    <definition value="The search for code on ValueSet returns ValueSet resources where the code is included in the extensional definition of the ValueSet."/>
  </concept>
  <concept>
    <code value="in-expansion"/>
    <display value="In Expansion"/>
    <definition value="The search for code on ValueSet returns ValueSet resources where the code is contained in the  ValueSet expansion."/>
  </concept>
  <concept>
    <code value="in-compose-or-expansion"/>
    <display value="In Compose Or Expansion"/>
    <definition value="The search for code on ValueSet returns ValueSet resources where the code is included in the extensional definition or contained in the ValueSet expansion."/>
  </concept>
</CodeSystem>
```