This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions
Example CodeSystem/operation-parameter-use (XML)
Raw XML (canonical form + also see XML Format Specification)
Definition for Code SystemOperationParameterUse
<?xml version="1.0" encoding="UTF-8"?>
<CodeSystem xmlns="http://hl7.org/fhir">
<id value="operation-parameter-use"/>
<meta>
<lastUpdated value="2025-08-28T21:10:18.393+00:00"/>
<profile value="http://hl7.org/fhir/StructureDefinition/shareablecodesystem"/>
</meta>
<text>
<status value="generated"/>
<div xmlns="http://www.w3.org/1999/xhtml">
<p class="res-header-id">
<b> Generated Narrative: CodeSystem operation-parameter-use</b>
</p>
<a name="operation-parameter-use"> </a>
<a name="hcoperation-parameter-use"> </a>
<div style="display: inline-block; background-color: #d9e0e7; padding: 6px; margin: 4px; border:
1px solid #8da1b4; border-radius: 5px; line-height: 60%">
<p style="margin-bottom: 0px"/>
<p style="margin-bottom: 0px">Profile:
<a href="shareablecodesystem.html">Shareable CodeSystem</a>
</p>
</div>
<p> This case-sensitive code system
<code> http://hl7.org/fhir/operation-parameter-use</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">in
<a name="operation-parameter-use-in"> </a>
</td>
<td> In</td>
<td> This is an input parameter.</td>
</tr>
<tr>
<td style="white-space:nowrap">out
<a name="operation-parameter-use-out"> </a>
</td>
<td> Out</td>
<td> This is an output parameter.</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="5"/>
</extension>
<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version">
<valueCode value="4.0.0"/>
</extension>
<url value="http://hl7.org/fhir/operation-parameter-use"/>
<identifier>
<system value="urn:ietf:rfc:3986"/>
<value value="urn:oid:2.16.840.1.113883.4.642.4.509"/>
</identifier>
<identifier>
<use value="old"/>
<system value="urn:ietf:rfc:3986"/>
<value value="urn:oid:2.16.840.1.113883.4.642.1.502"/>
</identifier>
<identifier>
<use value="old"/>
<system value="urn:ietf:rfc:3986"/>
<value value="urn:oid:2.16.840.1.113883.4.642.2.298"/>
</identifier>
<version value="6.0.0-ballot3"/>
<name value="OperationParameterUse"/>
<title value="Operation Parameter Use"/>
<status value="active"/>
<experimental value="false"/>
<date value="2021-01-05T10:01:24+11:00"/>
<publisher value="HL7 International / FHIR Infrastructure"/>
<contact>
<telecom>
<system value="url"/>
<value value="http://hl7.org/fhir"/>
</telecom>
<telecom>
<system value="email"/>
<value value="fhir@lists.hl7.org"/>
</telecom>
</contact>
<contact>
<telecom>
<system value="url"/>
<value value="http://www.hl7.org/Special/committees/fiwg"/>
</telecom>
</contact>
<description value="Whether an operation parameter is an input or an output parameter."/>
<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/operation-parameter-use"/>
<content value="complete"/>
<concept>
<code value="in"/>
<display value="In"/>
<definition value="This is an input parameter."/>
</concept>
<concept>
<code value="out"/>
<display value="Out"/>
<definition value="This is an output parameter."/>
</concept>
</CodeSystem>
Usage note: every effort has been made to ensure that the
examples are correct and useful, but they are not a normative part
of the specification.