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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

February Release - 02/01/2016

This release of RxNorm is consistent with the 2015AB UMLS Metathesaurus release. For additional information about RxNorm releases, including scripts for loading the RxNorm data into Oracle and MySQL databases, read the RxNorm technical documentation.


The following sources have been updated since the previous RxNorm release:

Source NameSABDate Updated
Gold Standard Drug Database GS 01/11/2016
Medi-Span Master Drug Data Base MDDB 12/30/2015
Multum MediSource Lexicon MMSL 01/01/2016
Micromedex RED BOOK MMX 01/04/2016
FDA Structured Product Labels MTHSPL 01/21/2016
FDB MedKnowledge (formerly NDDF Plus) NDDF 01/06/2016
Veterans Health Administration National Drug File - Reference Terminology NDFRT 02/01/2016
NDFRT FDASPL relationships NDFRT_FDASPL 02/01/2016
NDFRT FMTSME relationships NDFRT_FMTSME 02/01/2016
Veterans Health Administration National Drug File VANDF 12/16/2015


The following sources have not been updated in this release:

Source NameSABDate Updated
Anatomical Therapeutic Chemical Classification System ATC 2016
Medical Subject Headings (MeSH) MSH 08/18/2015
CMS Formulary Reference File MTHCMSFRF 2014
US Edition of SNOMED CT (drug information) SNOMEDCT_US 07/31/2015

Data Changes

New Dose Form and Dose Form Group
RxNorm includes one new dose form: Intratracheal Suspension. This dose form occurs in a handful of new drugs. Along with the new dose form comes a new dose form group: Intratracheal Product.

NDC Suppress Changes
After meeting with our data providers and reviewing our processes for editing NDCs, we have identified 7,572 inactive NDCs that were previously marked as active in RxNorm. These NDCs are now flagged as suppressed in RXNSAT.RRF and are no longer propagated to SAB=RXNORM.

This release also includes many changes to dose forms for injectable products as part of the ongoing prescribable names (TTY=PSN) work.

Data Counts

Term Type or AttributeNumber
Active GPCKs364
Active BPCKs410
Active SCDs18771
Active SBDs10700
Active RXNORM MINs3989
Active RXNORM INs10768
Active RXNORM PINs2495
Active RXNORM BNs6433
Active RXNORM DFs113
Obsolete GPCKs141
Obsolete BPCKs126
Obsolete SCDs16266
Obsolete SBDs10014
Obsolete RXNORM MINs0
Obsolete RXNORM INs0
Obsolete RXNORM PINs0
Obsolete RXNORM BNs9369
Obsolete RXNORM DFs54
Editor-suppressed SCDs1395
Editor-suppressed SBDs1237
Source-asserted NDCs1178665
Distinct source-asserted NDCs553923
Distinct SAB=RXNORM NDCs211946

Last Reviewed: February 1, 2016