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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

June Release - 06/06/2011

This release of RxNorm is consistent with the 2011AA UMLS Metathesaurus release. For additional information about RxNorm releases, including scripts for loading the RxNorm data into Oracle and MySQL databases, read the RxNorm Documentation.

Sources

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

Source NameSABDate Updated
Gold Standard Alchemy GS 04/28/2011
Medi-Span Master Drug Data Base MDDB 05/04/2011
Multum MediSource Lexicon MMSL 05/01/2011
Micromedex RED BOOK MMX 04/25/2011
Medical Subject Headings (MeSH) MSH 02/14/2011
FDA National Drug Code Directory MTHFDA 05/02/2011
FDA Structured Product Labels MTHSPL 05/27/2011
First DataBank NDDF Plus Source Vocabulary NDDF 05/04/2011
Veterans Health Administration National Drug File - Reference Terminology NDFRT 06/06/2011
Veterans Health Administration National Drug File VANDF 05/02/2011

 

The following sources have not been updated since the previous RxNorm release:

Source NameSABDate Updated
SNOMED Clinical Terms (drug information) SNOMEDCT 01/31/2011

 

Data Changes

This release of RxNorm contains Unified Medical Language System (UMLS) unique identifiers consistent with the 2011AA UMLS release files.

Data Counts

Term Type or AttributeNumber
Active GPCK forms 312
Active BPCK forms 384
Active SCD forms 19,377
Active SBD forms 16,688
Active RXNORM MIN atoms 3,658
Active RXNORM IN atoms 4,972
Active RXNORM PIN atoms 1,556
Active RXNORM BN atoms 15,131
Active RXNORM DF atoms 100
   
Obsolete GPCK forms 64
Obsolete BPCK forms 41
Obsolete SCD forms 13,868
Obsolete SBD forms 4,003
Obsolete RXNORM MIN atoms 0
Obsolete RXNORM IN atoms 0
Obsolete RXNORM PIN atoms 0
Obsolete RXNORM BN atoms 0
Obsolete RXNORM DF atoms 55
OCD atoms 279,736
   
Source-asserted NDC codes 802,371
Distinct Source-asserted NDC codes 431,704
SAB=RXNORM NDC codes 234,530
Distinct SAB=RXNORM NDC codes 234,530