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Using the RxNorm web services API for quality assurance purposes.

Lee Peters¹, Olivier Bodenreider

¹U.S. National Library of Medicine, National Institutes of Health, Bethesda, Maryland, USA. {lpeters|obodenreider}@mail.nih.gov

AMIA ... Annual Symposium Proceedings. AMIA Symposium

|November 13, 2008

Summary

This summary is machine-generated.

Auditing the RxNorm drug terminology system using the RxNav API revealed potential errors and improved navigation. This quality assurance approach enhances the accuracy of clinical drug data.

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Last Updated: Jun 28, 2026

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Published on: April 8, 2022

Area of Science:

Medical Informatics
Pharmacology
Computer Science

Background:

Auditing large, evolving terminological systems like RxNorm presents significant challenges.
Quality assurance for clinical drug nomenclature is crucial for patient safety and data integrity.

Purpose of the Study:

To evaluate the utility of the RxNav application programming interface (API) for auditing the RxNorm drug terminology system.
To identify potential errors and improve the accuracy of navigating the RxNorm graph.

Main Methods:

Systematic comparison of alternative paths within the RxNorm graph using the RxNav web services API.
Analysis of several thousands of drug entities to identify discrepancies.
Modification of the RxNav implementation based on study findings.

Main Results:

The study identified potential errors in the RxNorm terminology, which are currently under review.
The RxNav API proved to be a robust and fast tool for auditing RxNorm.
The implementation of RxNav was enhanced for more accurate graph navigation.

Conclusions:

The RxNav API is a valuable tool for quality assurance of the RxNorm drug nomenclature.
Leveraging APIs can significantly improve the auditing of complex terminological systems.
Continuous improvement of tools and terminologies is essential in pharmacoinformatics.