HL7 Terminology (THO)
5.5.0 - Continuous Process Integration (ci build) International flag

HL7 Terminology (THO), published by HL7 International - Vocabulary Work Group. This guide is not an authorized publication; it is the continuous build for version 5.5.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/UTG/ and changes regularly. See the Directory of published versions

CodeSystem: Medication Reference Terminology (MED-RT)

Official URL: http://va.gov/terminology/medrt Version: 1.0.1
Active as of 2022-02-16 Responsible: National Cancer Institute (NCI) Enterprise Vocabulary Services (EVS) Computable Name: MEDRT
Other Identifiers: urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#urn:oid:2.16.840.1.113883.6.345

Copyright/Legal: MED-RT has no copyright acknowledgement required. However, users must adhere to the UMLS license.

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

This Code system is referenced in the content logical definition of the following value sets:

  • This CodeSystem is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

This case-sensitive code system http://va.gov/terminology/medrt defines codes, but no codes are represented here


2022-07-22reviseTSMGJessica BotaAdd default value of TRUE for code systems missing caseSensitive element unless otherwise specified; UP-322
2022-02-17createHTAJessica BotaAdd Medication Reference Terminology (MED-RT) per HTA; UP-291