Title
Covid-19 Testnorm: A Tool To Normalize Covid-19 Testing Names To Loinc Codes
Abstract
Large observational data networks that leverage routine clinical practice data in electronic health records (EHRs) are critical resources for research on coronavirus disease 2019 (COVID-19). Data normalization is a key challenge for the secondary use of EHRs for COVID-19 research across institutions. In this study, we addressed the challenge of automating the normalization of COVID-19 diagnostic tests, which are critical data elements, but for which controlled terminology terms were published after clinical implementation. We developed a simple but effective rule-based tool called COVID-19 TestNorm to automatically normalize local COVID-19 testing names to standard LOINC (Logical Observation Identifiers Names and Codes) codes. COVID-19 TestNorm was developed and evaluated using 568 test names collected from 8 healthcare systems. Our results show that it could achieve an accuracy of 97.4% on an independent test set. COVID-19 TestNorm is available as an opensource package for developers and as an online Web application for end users (https://clamp.uth.edu/covid/loinc.php). We believe that it will be a useful tool to support secondary use of EHRs for research on COVID-19.
Year
DOI
Venue
2020
10.1093/jamia/ocaa145
JOURNAL OF THE AMERICAN MEDICAL INFORMATICS ASSOCIATION
Keywords
DocType
Volume
COVID-19, natural language processing, testing name normalization, LOINC, COVID-19 TestNorm
Journal
27
Issue
ISSN
Citations 
9
1067-5027
0
PageRank 
References 
Authors
0.34
0
20