{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,2]],"date-time":"2026-01-02T07:38:50Z","timestamp":1767339530617},"reference-count":27,"publisher":"Oxford University Press (OUP)","issue":"e1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2016,4,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Objective RxNorm is a standardized drug nomenclature maintained by the National Library of Medicine that has been recommended as an alternative to the National Drug Code (NDC) terminology for use in electronic prescribing. The objective of this study was to evaluate the implementation of RxNorm in ambulatory care electronic prescriptions (e-prescriptions).<\/jats:p>\n               <jats:p>Methods We analyzed a random sample of 49\u2009997 e-prescriptions that were received by 7391 locations of a national retail pharmacy chain during a single day in April 2014. The e-prescriptions in the sample were generated by 37\u2009801 ambulatory care prescribers using 519 different e-prescribing software applications.<\/jats:p>\n               <jats:p>Results We found that 97.9% of e-prescriptions in the study sample could be accurately represented by an RxNorm identifier. However, RxNorm identifiers were actually used as drug identifiers in only 16\u2009433 (33.0%) e-prescriptions. Another 431 (2.5%) e-prescriptions that used RxNorm identifiers had a discrepancy in the corresponding Drug Database Code qualifier field or did not have a qualifier (Term Type) at all. In 10 e-prescriptions (0.06%), the free-text drug description and the RxNorm concept unique identifier pointed to completely different drug concepts, and in 7 e-prescriptions (0.04%), the NDC and RxNorm drug identifiers pointed to completely different drug concepts.<\/jats:p>\n               <jats:p>Discussion The National Library of Medicine continues to enhance the RxNorm terminology and expand its scope. This study illustrates the need for technology vendors to improve their implementation of RxNorm; doing so will accelerate the adoption of RxNorm as the preferred alternative to using the NDC terminology in e-prescribing.<\/jats:p>","DOI":"10.1093\/jamia\/ocv131","type":"journal-article","created":{"date-parts":[[2015,10,29]],"date-time":"2015-10-29T00:58:31Z","timestamp":1446080311000},"page":"e99-e107","source":"Crossref","is-referenced-by-count":12,"title":["Evaluating the implementation of RxNorm in ambulatory electronic prescriptions"],"prefix":"10.1093","volume":"23","author":[{"given":"Ajit A","family":"Dhavle","sequence":"first","affiliation":[{"name":"Surescripts LLC, Clinical Quality, Arlington, VA, USA"}]},{"given":"Stacy","family":"Ward-Charlerie","sequence":"additional","affiliation":[{"name":"Surescripts LLC, Clinical Quality, Arlington, VA, USA"}]},{"given":"Michael T","family":"Rupp","sequence":"additional","affiliation":[{"name":"Midwestern University, Pharmacy Administration, Glendale, AZ, USA"}]},{"given":"John","family":"Kilbourne","sequence":"additional","affiliation":[{"name":"National Library of Medicine, Medical Subject Headings (MeSH), Bethesda, MD, USA"}]},{"given":"Vishal P","family":"Amin","sequence":"additional","affiliation":[{"name":"CVS Health, Patient Safety and Quality Assurance, Woonsocket, RI, USA"}]},{"given":"Joshua","family":"Ruiz","sequence":"additional","affiliation":[{"name":"Surescripts LLC, Clinical Quality, Arlington, VA, USA"}]}],"member":"286","published-online":{"date-parts":[[2015,10,28]]},"reference":[{"key":"2020110612385008700_ocv131-B1","article-title":"Towards creating the perfect electronic prescription","author":"Dhavle","journal-title":"JAMIA."},{"key":"2020110612385008700_ocv131-B2","first-page":"365","article-title":"CDS Expert Review Panel. Clinical decision support in electronic prescribing: recommendations and an action plan: report of the joint clinical decision support workgroup","volume":"12","author":"Teich","year":"2005","journal-title":"JAMIA."},{"key":"2020110612385008700_ocv131-B3","volume-title":"Evaluation of RxNorm in Ambulatory Electronic Prescribing","author":"Bell"},{"key":"2020110612385008700_ocv131-B4","first-page":"1","article-title":"Standards for medical identifiers, codes, and messages needed to create an efficient computer-stored medical record","volume":"1","author":"Board of Directors of the American Medical Informatics Association","year":"1994","journal-title":"JAMIA."},{"key":"2020110612385008700_ocv131-B5","first-page":"353","article-title":"Transmitting and processing electronic prescriptions: experiences of physician practices and 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