FHIR Release 3 (STU) Current Build
This page is part of FHIR STU 3 (v3.0.1) in it's permanent home (it will always be available at this URL). It has been superceded by R4 . For a full list of available versions, see the Directory of published versions .
Vocabulary Work Group Maturity Level : 3 Ballot Standards Status : Trial Use
Source FDA Substance Registration System
System The URI to identify UNII codes is http://fdasis.nlm.nih.gov
Version If it is desired to exchange the version, use the date of the file in the UNII list download in the format YYYYMMDD
Code Use the value of the UNII column in the UNII List
Display Use the value of the PT (Preferred Term) column in the UNII List
Inactive Todo: Describe how it is determined which concepts are inactive
Subsumption No Subsumption relationships are defined by UNII
Filter Properties None are described yet

To be investigated

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

No need for filters identified yet.

No need for implicit value sets identified yet.