<?xml version="1.0" encoding="UTF-8"?><CodeSystem xmlns="http://hl7.org/fhir"><id value="MEDRT"/><text><status value="generated"/><div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem MEDRT</b></p><a name="MEDRT"> </a><a name="hcMEDRT"> </a><a name="MEDRT-en-US"> </a><p>This case-sensitive code system <code>http://va.gov/terminology/medrt</code> defines codes, but no codes are represented here</p></div></text><url value="http://va.gov/terminology/medrt"/><identifier><system value="urn:ietf:rfc:3986"/><value value="urn:oid:2.16.840.1.113883.6.345"/></identifier><version value="1.0.1"/><name value="MEDRT"/><title value="Medication Reference Terminology (MED-RT)"/><status value="active"/><experimental value="false"/><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><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.&#xD;&#xA;&#xD;&#xA;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.&#xD;&#xA;&#xD;&#xA;MED-RT can be downloaded from https://evs.nci.nih.gov/ftp1/MED-RT/ &#xD;&#xA;&#xD;&#xA;For more information, please see https://ncit.nci.nih.gov/ncitbrowser/pages/vocabulary.jsf?dictionary=MED-RT"/><copyright value="MED-RT has no copyright acknowledgement required. However, users must adhere to the UMLS license."/><caseSensitive value="true"/><content value="not-present"/></CodeSystem>