August Release - 08/05/2013
This release of RxNorm is consistent with the 2013AA 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 Name | SAB | Date Updated |
|---|---|---|
| Anatomical Therapeutic Chemical Classification System | ATC | 2013 |
| Gold Standard Drug Database | GS | 07/03/2013 |
| Medi-Span Master Drug Data Base | MDDB | 07/03/2013 |
| Multum MediSource Lexicon | MMSL | 07/01/2013 |
| Micromedex RED BOOK | MMX | 07/01/2013 |
| FDA Structured Product Labels | MTHSPL | 07/29/2013 |
| FDB MedKnowledge (formerly NDDF Plus) | NDDF | 07/10/2013 |
| Veterans Health Administration National Drug File | VANDF | 06/24/2013 |
The following sources have not been updated in this release:
| Source Name | SAB | Date Updated |
|---|---|---|
| Medical Subject Headings (MeSH) | MSH | 01/21/2013 |
| FDA National Drug Code Directory | MTHFDA | 06/01/2011 |
| Veterans Health Administration National Drug File - Reference Terminology | NDFRT | 07/01/2013 |
| SNOMED Clinical Terms (drug information) | SNOMEDCT | 01/31/2013 |
Data Changes
This release of RxNorm includes a new source - Anatomical Therapeutic Chemical Classification System (ATC). The World Health Organization (WHO) Collaborating Centre for Drug Statistics Methodology maintains ATC. ATC classifies chemical substances into 14 anatomical groups, which are divided into three levels of pharmacological, chemical, and therapeutic subgroups. Members of these groups and subgroups include approximately 4,500 ingredients.
To represent ATC in RxNorm, we use the ‘PT’ term type (TTY) for group and subgroup names and the ‘IN’ TTY for ingredient names. We also created ‘RXN_PT’ and ‘RXN_IN’ TTYs to disambiguate some group, subgroup, and ingredient names. For example, there is a ‘PT’ for the subgroup ‘Antibiotics’ within the subgroup ‘Drugs for treatment of tuberculosis’. We also created a string, ‘Antibiotics, Antitubercular’, with a TTY of ‘RXN_PT’ to clarify the context of this subgroup. We relate ingredients to their respective subgroups using ‘member_of’/’has_member’ relationships, and groups and subgroups relate to each other with ‘isa’/’inverse_isa’ relationships.
For more information about ATC, visit the WHO ATC page.
Data Counts
| Term Type or Attribute | Number |
|---|---|
| Active GPCK forms | 335 |
| Active BPCK forms | 408 |
| Active SCD forms | 20,052 |
| Active SBD forms | 11,006 |
| Active RXNORM MIN atoms | 3,844 |
| Active RXNORM IN atoms | 9,147 |
| Active RXNORM PIN atoms | 2,177 |
| Active RXNORM BN atoms | 6,940 |
| Active RXNORM DF atoms | 104 |
| Obsolete GPCK forms | 118 |
| Obsolete BPCK forms | 96 |
| Obsolete SCD forms | 13,785 |
| Obsolete SBD forms | 9,585 |
| Obsolete RXNORM MIN atoms | 0 |
| Obsolete RXNORM IN atoms | 0 |
| Obsolete RXNORM PIN atoms | 0 |
| Obsolete RXNORM BN atoms | 8,758 |
| Obsolete RXNORM DF atoms | 51 |
| Editor-suppressed SCD forms | 1,093 |
| Editor-suppressed SBD forms | 902 |
| OCD atoms | 311,395 |
| Source-asserted NDC codes | 1,245,556 |
| Distinct Source-asserted NDC codes | 558,772 |
| SAB=RXNORM NDC codes | 192,460 |
| Distinct SAB=RXNORM NDC codes | 192,460 |
Last Reviewed: August 5, 2013