2nd DSTU Draft For Comment

This page is part of the FHIR Specification (v0.4.0: DSTU 2 Draft). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R4B R4 R3 R2

1.22.1.5 Using NDF-RT (National Drug File – Reference Terminology) with FHIR

1.22.1.5.1 Summary

SourceNational Drug File – Reference Terminology prepared by Veterans Health Administration, and distributed as part of UMLS by the NLM
SystemThe URI to identify NDF-RT is not resolved. As a temporary arrangement, the URL "http://hl7.org/fhir/ndfrt" is to be used
VersionA version is not needed. Use the date of release of the UMLS release for the version of NDF-RT if a version is desired
CodeThe NUI is used for the code value for an NDF-RT concept
Display??
Filter PropertiesNone are described yet

This arrangement is temporary while the NDF-RT and FHIR teams discuss the long term arrangements. Further documentation can be found in evs.

1.22.1.5.2 Version Issues

NDF-RT is released as part of UMLS, and therefore erach successive release has the date of the UMLS release as it's version.

1.22.1.5.3 Copyright/License Issues

NDF-RT has no copyright acknowledgement needed, but users must adhere to the UMLS license.

1.22.1.5.4 NDF-RT Filter Properties

This section documents the property filters that can be used with the SNOMED CT code system in value set composition statements.

1.22.1.5.4.1 By Subsumption

DescriptionSelect a set of concepts based on subsumption testing
Property Nameconcept
Operations Allowedis-a
Values AllowedNUI
CommentsIncludes all concepts that have a transitive is-a relationship with the concept Id provided in the value as an NUI

Others Yet to be done.

1.22.1.5.5 Implicit Value Sets

Yet to be done.