This page is part of the HL7 Terminology (v4.0.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions 
: Medication Reference Terminology (MED-RT) - XML Representation
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<NamingSystem xmlns="http://hl7.org/fhir">
<id value="MEDRT"/>
<text>
<status value="generated"/>
<div xmlns="http://www.w3.org/1999/xhtml"><h3>Summary</h3><table class="grid"><tr><td>Defining URL</td><td>http://terminology.hl7.org/NamingSystem/MEDRT</td></tr><tr><td>Name</td><td>MEDRT</td></tr><tr><td>Status</td><td>active</td></tr><tr><td>Definition</td><td><div><p>Medication Reference Terminology (MED-RT) is the evolutionary successor to the Veterans Health Administration National Drug File – Reference Terminology (VHA NDF-RT). Both are formal ontology representations of medication terminology, pharmacologic classifications, and asserted authoritative relationships between them.</p>
<p>The MED-RT code system includes relationships between MED-RT concepts and concepts in external code systems, as well as relationships between concepts only in the external code systems. The external code systems that MED-RT references include RxNorm, MeSH, and SNOMED CT US Edition.</p>
<p>MED-RT can be downloaded from https://evs.nci.nih.gov/ftp1/MED-RT/</p>
<p>For more information, please see https://ncit.nci.nih.gov/ncitbrowser/pages/vocabulary.jsf?dictionary=MED-RT</p>
</div></td></tr><tr><td>Publisher</td><td>National Cancer Institute (NCI) Enterprise Vocabulary Services (EVS)</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></tr><tr><td>OID</td><td>2.16.840.1.113883.6.345</td><td>true</td></tr><tr><td>URI</td><td>http://va.gov/terminology/medrt</td><td>true</td></tr></table></div>
</text>
<extension
url="http://hl7.org/fhir/tools/StructureDefinition/extension-title">
<valueString value="Medication Reference Terminology (MED-RT)"/>
</extension>
<extension
url="http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.url">
<valueUri value="http://terminology.hl7.org/NamingSystem/MEDRT"/>
</extension>
<extension
url="http://terminology.hl7.org/StructureDefinition/ext-namingsystem-version">
<valueString value="1.0.0"/>
</extension>
<name value="MEDRT"/>
<status value="active"/>
<kind value="codesystem"/>
<date value="2022-02-16T00:00:00-00:00"/>
<publisher
value="National Cancer Institute (NCI) Enterprise Vocabulary Services (EVS)"/>
<contact>
<name value="US Department of Veterans Affairs; John Kilbourne, MD"/>
<telecom>
<system value="url"/>
<value value="https://www.va.gov/"/>
</telecom>
<telecom>
<system value="email"/>
<value value="medrt@jpsys.com"/>
</telecom>
<telecom>
<system value="email"/>
<value value="John.Kilbourne@va.gov"/>
</telecom>
</contact>
<responsible value="US Department of Veterans Affairs; John Kilbourne, MD"/>
<description
value="Medication Reference Terminology (MED-RT) is the evolutionary successor to the Veterans Health Administration National Drug File – Reference Terminology (VHA NDF-RT). Both are formal ontology representations of medication terminology, pharmacologic classifications, and asserted authoritative relationships between them.
The MED-RT code system includes relationships between MED-RT concepts and concepts in external code systems, as well as relationships between concepts only in the external code systems. The external code systems that MED-RT references include RxNorm, MeSH, and SNOMED CT US Edition.
MED-RT can be downloaded from https://evs.nci.nih.gov/ftp1/MED-RT/
For more information, please see https://ncit.nci.nih.gov/ncitbrowser/pages/vocabulary.jsf?dictionary=MED-RT"/>
<uniqueId>
<type value="oid"/>
<value value="2.16.840.1.113883.6.345"/>
<preferred value="true"/>
</uniqueId>
<uniqueId>
<type value="uri"/>
<value value="http://va.gov/terminology/medrt"/>
<preferred value="true"/>
</uniqueId>
</NamingSystem>
