{
  "resourceType": "NamingSystem",
  "id": "MEDRT",
  "text": {
    "status": "generated",
    "div": "<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>\n<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>\n<p>MED-RT can be downloaded from https://evs.nci.nih.gov/ftp1/MED-RT/</p>\n<p>For more information, please see https://ncit.nci.nih.gov/ncitbrowser/pages/vocabulary.jsf?dictionary=MED-RT</p>\n</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>"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/tools/StructureDefinition/extension-title",
      "valueString": "Medication Reference Terminology (MED-RT)"
    },
    {
      "url": "http://hl7.org/fhir/5.0/StructureDefinition/extension-NamingSystem.url",
      "valueUri": "http://terminology.hl7.org/NamingSystem/MEDRT"
    },
    {
      "url": "http://terminology.hl7.org/StructureDefinition/ext-namingsystem-version",
      "valueString": "1.0.0"
    }
  ],
  "name": "MEDRT",
  "status": "active",
  "kind": "codesystem",
  "date": "2022-02-16T00:00:00-00:00",
  "publisher": "National Cancer Institute (NCI) Enterprise Vocabulary Services (EVS)",
  "contact": [
    {
      "name": "US Department of Veterans Affairs; John Kilbourne, MD",
      "telecom": [
        {
          "system": "url",
          "value": "https://www.va.gov/"
        },
        {
          "system": "email",
          "value": "medrt@jpsys.com"
        },
        {
          "system": "email",
          "value": "John.Kilbourne@va.gov"
        }
      ]
    }
  ],
  "responsible": "US Department of Veterans Affairs; John Kilbourne, MD",
  "description": "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.\r\n\r\nThe 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.\r\n\r\nMED-RT can be downloaded from https://evs.nci.nih.gov/ftp1/MED-RT/ \r\n\r\nFor more information, please see https://ncit.nci.nih.gov/ncitbrowser/pages/vocabulary.jsf?dictionary=MED-RT",
  "uniqueId": [
    {
      "type": "oid",
      "value": "2.16.840.1.113883.6.345",
      "preferred": true
    },
    {
      "type": "uri",
      "value": "http://va.gov/terminology/medrt",
      "preferred": true
    }
  ]
}