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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

December Release - 12/05/2011

This release of RxNorm is consistent with the 2011AB 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.

Sources

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

Source NameSABDate Updated
Gold Standard Drug Database GS 11/04/2011
Medi-Span Master Drug Data Base MDDB 11/09/2011
Multum MediSource Lexicon MMSL 11/01/2011
Micromedex RED BOOK MMX 10/31/2011
Medical Subject Headings (MeSH) MSH 09/09/2011
FDA Structured Product Labels MTHSPL 11/28/2011
First DataBank NDDF Plus Source Vocabulary NDDF 11/09/2011
Veterans Health Administration National Drug File - Reference Terminology NDFRT 11/07/2011
Veterans Health Administration National Drug File VANDF 10/25/2011

 

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

Source NameSABDate Updated
FDA National Drug Code Directory MTHFDA 06/01/2011
SNOMED Clinical Terms (drug information) SNOMEDCT 07/31/2011

 

Data Changes

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

Data Counts

Term Type or AttributeNumber
Active GPCK forms 317
Active BPCK forms 396
Active SCD forms 20,418
Active SBD forms 17,100
Active RXNORM MIN atoms 3,708
Active RXNORM IN atoms 5,006
Active RXNORM PIN atoms 1,569
Active RXNORM BN atoms 15,503
Active RXNORM DF atoms 100
   
Obsolete GPCK forms 69
Obsolete BPCK forms 38
Obsolete SCD forms 13,026
Obsolete SBD forms 3,881
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 290,002
   
Source-asserted NDC codes 1,041,479
Distinct Source-asserted NDC codes 489,338
SAB=RXNORM NDC codes 253,426
Distinct SAB=RXNORM NDC codes 253,426