HL7 Terminology (THO)
4.0.0 - Publication World

This page is part of the HL7 Terminology (v4.0.0: Release) based on FHIR R4. This is the current published version. For a full list of available versions, see the Directory of published versions

Using UNII with HL7 Standards

This page describes how to use UNII with HL7 Standards.

Using UNII with FHIR R5


SourceFDA Substance Registration System
SystemThe URI to identify UNII codes is http://fdasis.nlm.nih.gov
VersionIf it is desired to exchange the version, use the date of the file in the UNII list download in the format YYYYMMDD
CodeUse the value of the UNII column in the UNII List
DisplayUse the value of the PT (Preferred Term) column in the UNII List
InactiveTodo: Describe how it is determined which concepts are inactive
SubsumptionNo Subsumption relationships are defined by UNII
Filter PropertiesNone are described yet

Version Issues

To be investigated

Copyright/License Issues

UNII has no copyright acknowledgement needed, nor are there any license terms to adhere to.

UNII Filter Properties

No need for filters identified yet.

UNII Implicit Value Sets

No need for implicit value sets identified yet.