AMIA Annu Symp Proc - Evaluation of RxNorm for Representing Ambulatory Prescriptions.

Tópicos

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Resumo

JECTIVE: We evaluated the RxNorm standardized drug nomenclature for representing ambulatory e-prescriptions.METHODS: Using a sample of 19743 primary care e-prescriptions, we estimated the coverage rate of RxNorm for representing clinical drugs, measured the 6-month replacement rate for RxNorm concepts, assessed the consistency of two independent concept mappings, and investigated inconsistent mappings.RESULTS: RxNorm contained concepts for nearly all prescriptions in the sample (99.995%). Of 1419 concepts used, 8.1% were replaced between April and October 2009. Independent mappings produced different concepts for 676 e-prescriptions (3.4%), but most differences would have low clinical significance. Most mismatches were related to the use of extended-release form concepts with no duration specified, inhalers vs. their contents, and clinically inert salts.CONCLUSIONS: RxNorm provides concepts covering nearly all ambulatory e-prescriptions in this setting. Independent mappings were relatively consistent. Improvements could be made by enabling selection of the most-specific concepts when broader prescribable concepts exist.

Resumo Limpo

jectiv evalu rxnorm standard drug nomenclatur repres ambulatori eprescriptionsmethod use sampl primari care eprescript estim coverag rate rxnorm repres clinic drug measur month replac rate rxnorm concept assess consist two independ concept map investig inconsist mappingsresult rxnorm contain concept near prescript sampl concept use replac april octob independ map produc differ concept eprescript differ low clinic signific mismatch relat use extendedreleas form concept durat specifi inhal vs content clinic inert saltsconclus rxnorm provid concept cover near ambulatori eprescript set independ map relat consist improv made enabl select mostspecif concept broader prescrib concept exist

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