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

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CodeSystem: National Drug File Reference Terminology (NDF-RT)

Official URL: http://hl7.org/fhir/ndfrt				Version: 1.0.0
Active as of 2022-08-23			Responsible: National Cancer Institute (NCI) Enterprise Vocabulary Services (EVS)	Computable Name: NDFRT
Other Identifiers: urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#urn:oid:2.16.840.1.113883.6.209
Copyright/Legal: NDF-RT is released as part of UMLS. Therefore, each successive release has the date of the UMLS release as its version.

NDF-RT is a concept-oriented terminology, a collection of concepts, each of which represents a single, unique meaning. Every concept has one fully-specified name and an arbitrary number of other names, all of which are intended to mean the same thing and are therefore synonymous terms. Synonymous terms from external vocabulary sources may have associated unique identifiers. Publication of NDF-RT has ended. The Medication Reference Terminology (MED-RT) is the evolutionary successor to the NDF-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)