Mapping Medication Orders to RxNorm Concepts

Terminology Status APIs – Mapping Obsolete Codes to Current RxNorm, SNOMED CT, and LOINC Concepts

We created the Terminology Status Application Programming Interface (API) to assist users in mapping obsolete codes to current RxNorm, SNOMED CT and LOINC concepts. Use cases include support for information retrieval, maintenance of value sets, and analytics of legacy clinical databases. Our terminology status APIs typically receive over 4 million calls per month on average.

Automated Mapping of Pharmacy Orders from Two Electronic Health Record Systems to RxNorm within the STRIDE Clinical Data Warehouse

The Stanford Translational Research Integrated Database Environment (STRIDE) clinical data warehouse integrates medication information from two Stanford hospitals that use different drug representation systems. To merge this pharmacy data into a single, standards-based model supporting research we developed an algorithm to map HL7 pharmacy orders to RxNorm concepts. A formal evaluation of this ...

Utilizing RxNorm to support practical computing applications: Capturing medication history in live electronic health records

RxNorm was utilized as the basis for direct-capture of medication history data in a live EHR system deployed in a large, multi-state outpatient behavioral healthcare provider in the United States serving over 75,000 distinct patients each year across 130 clinical locations. This tool incorporated auto-complete search functionality for medications and proper dosage identification assistance. The...

Approaches to Supporting the Analysis of Historical Medication Datasets with RxNorm

OBJECTIVE To investigate approaches to supporting the analysis of historical medication datasets with RxNorm. METHODS We created two sets of National Drug Codes (NDCs). One is based on historical NDCs harvested from versions of RxNorm from 2007 to present. The other comprises all sources of NDCs in the current release of RxNorm, including proprietary sources. We evaluated these two resources ...

Using RxNorm to Extract Medication Data from Electronic Health Records in the Rochester Epidemiology Project