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

<NamingSystem xmlns="http://hl7.org/fhir">
  <id value="MeSH"/>
  <text>
    <status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: NamingSystem MeSH</b></p><a name="MeSH"> </a><a name="hcMeSH"> </a><a name="MeSH-en-US"> </a><h3>Summary</h3><table class="grid"><tr><td>Defining URL</td><td>http://terminology.hl7.org/NamingSystem/MeSH</td></tr><tr><td>Version</td><td>3.0.0</td></tr><tr><td>Name</td><td>MeSH</td></tr><tr><td>Title</td><td>Medical Subject Headings</td></tr><tr><td>Status</td><td>active</td></tr><tr><td>Definition</td><td><div><p>The Medical Subject Headings (MeSH) thesaurus is a controlled and hierarchically-organized vocabulary produced by the National Library of Medicine. It is used for indexing, cataloging, and searching of biomedical and health-related information. MeSH includes the subject headings appearing in MEDLINE/PubMed, the NLM Catalog, and other NLM databases.</p>
<p>MeSH can be downloaded from https://www.nlm.nih.gov/databases/download/mesh.html</p>
<p>MeSH can be browsed here: https://meshb.nlm.nih.gov/search</p>
</div></td></tr><tr><td>Publisher</td><td>National Library of Medicine</td></tr></table><h3>Identifiers</h3><table class="grid"><tr><td><b>Type</b></td><td><b>Value</b></td><td><b>Preferred</b></td><td><b>Period</b></td><td><b>Comment</b></td></tr><tr><td>OID</td><td>2.16.840.1.113883.6.177</td><td>true</td><td></td><td/></tr><tr><td>URI</td><td>https://www.nlm.nih.gov/mesh</td><td>true</td><td>2021-06-29 00:00:00-0400 --&gt; (ongoing)</td><td>Official canonical URL going forward.</td></tr><tr><td>URI</td><td>http://terminology.hl7.org/CodeSystem/MSH</td><td>false</td><td>(?) --&gt; 2021-06-29 00:00:00-0400</td><td>Maintained for backward compatibility.</td></tr></table></div>
  </text>
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    <valueUri value="http://terminology.hl7.org/NamingSystem/MeSH"/>
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  <extension url="http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.version">
    <valueString value="3.0.0"/>
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  <extension url="http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.title">
    <valueString value="Medical Subject Headings"/>
  </extension>
  <name value="MeSH"/>
  <status value="active"/>
  <kind value="codesystem"/>
  <date value="2021-06-29T00:00:00-04:00"/>
  <publisher value="National Library of Medicine"/>
  <contact>
    <name value="National Library of Medicine; 8600 Rockville Pike, Bethesda, MD 20894"/>
    <telecom>
      <system value="email"/>
      <value value="https://support.nlm.nih.gov/support/create-case/"/>
    </telecom>
    <telecom>
      <system value="url"/>
      <value value="https://www.nlm.nih.gov/"/>
    </telecom>
  </contact>
  <description value="The Medical Subject Headings (MeSH) thesaurus is a controlled and hierarchically-organized vocabulary produced by the National Library of Medicine. It is used for indexing, cataloging, and searching of biomedical and health-related information. MeSH includes the subject headings appearing in MEDLINE/PubMed, the NLM Catalog, and other NLM databases.&#xD;&#xA;&#xD;&#xA;MeSH can be downloaded from https://www.nlm.nih.gov/databases/download/mesh.html&#xD;&#xA;&#xD;&#xA;MeSH can be browsed here: https://meshb.nlm.nih.gov/search"/>
  <uniqueId>
    <type value="oid"/>
    <value value="2.16.840.1.113883.6.177"/>
    <preferred value="true"/>
  </uniqueId>
  <uniqueId>
    <type value="uri"/>
    <value value="https://www.nlm.nih.gov/mesh"/>
    <preferred value="true"/>
    <comment value="Official canonical URL going forward."/>
    <period>
      <start value="2021-06-29T00:00:00-04:00"/>
    </period>
  </uniqueId>
  <uniqueId>
    <type value="uri"/>
    <value value="http://terminology.hl7.org/CodeSystem/MSH"/>
    <preferred value="false"/>
    <comment value="Maintained for backward compatibility."/>
    <period>
      <end value="2021-06-29T00:00:00-04:00"/>
    </period>
  </uniqueId>
</NamingSystem>