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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

January Release - 01/06/2014

This release of RxNorm is consistent with the 2013AB 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 12/02/2013
Medi-Span Master Drug Data Base MDDB 12/04/2013
Multum MediSource Lexicon MMSL 12/02/2013
Micromedex RED BOOK MMX 12/02/2013
FDA Structured Product Labels MTHSPL 12/26/2013
FDB MedKnowledge (formerly NDDF Plus) NDDF 12/04/2013
Veterans Health Administration National Drug File - Reference Terminology NDFRT 01/06/2014
Veterans Health Administration National Drug File VANDF 11/25/2013


The following sources have not been updated in this release:

Source NameSABDate Updated
Anatomical Therapeutic Chemical Classification System ATC 2013
Medical Subject Headings (MeSH) MSH 08/19/2013
FDA National Drug Code Directory MTHFDA 06/01/2011
US Edition of SNOMED CT (drug information) SNOMEDCT_US 07/31/2013

Data Changes

A new dose form, injectable foam, was added for the January release. Injectable foam is included in the "Injectable Product" dose form group, and is defined as a foam intended to be injected.

Data Counts

Term Type or AttributeNumber
Active GPCK forms 333
Active BPCK forms 410
Active SCD forms 20,216
Active SBD forms 10,671
Active RXNORM MIN atoms 3,869
Active RXNORM IN atoms 9,489
Active RXNORM PIN atoms 2,228
Active RXNORM BN atoms 6,690
Active RXNORM DF atoms 105
Obsolete GPCK forms 128
Obsolete BPCK forms 107
Obsolete SCD forms 13,873
Obsolete SBD forms 10,261
Obsolete RXNORM MIN atoms 0
Obsolete RXNORM IN atoms 0
Obsolete RXNORM PIN atoms 0
Obsolete RXNORM BN atoms 9,228
Obsolete RXNORM DF atoms 51
Editor-suppressed SCD forms 1,125
Editor-suppressed SBD forms 909
OCD atoms 325,826
Source-asserted NDC codes 1,270,678
Distinct Source-asserted NDC codes 572,334
SAB=RXNORM NDC codes 195,716
Distinct SAB=RXNORM NDC codes 195,716

Last Reviewed: January 6, 2014