| DESCRIPTION |
RxNorm is a standardized nomenclature for clinical drugs. RxNorm is
System (UMLS). There is exactly one row in this file for each Semantic
Type assigned to each concept. All RxNorm concepts have at least one
entry in this file. Many have more than one entry. The STY is a direct
link to the UMLS Semantic Network.
produced by the National Library of Medicine (NLM). In this context, a
clinical drug is a pharmaceutical product given to (or taken by) a patient
with a therapeutic or diagnostic intend. The name of the drug in RxNorm
combines its ingredients, dosage strength, and form.
The RxNorm Semantic Types file contains a subset of the data distributed
by NLM in the RXNSTY.RRF file. This file follows the general format of the
MRSTY.RRF file of the Metathesaurus in NLM's Unified Medical Language
|
