Next-generation phenotyping: introducing phecodeX for enhanced discovery research in medical phenomics.

Shuey, Megan M; Stead, William W; Aka, Ida; Barnado, April L; Bastarache, Julie A; Brokamp, Elly; Campbell, Meredith; Carroll, Robert J et al. · Bioinformatics · 2023

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Abstract

Phecodes are widely used and easily adapted phenotypes based on International Classification of Diseases codes. The current version of phecodes (v1.2) was designed primarily to study common/complex diseases diagnosed in adults; however, there are numerous limitations in the codes and their structure. Here, we present phecodeX, an expanded version of phecodes with a revised structure and 1,761 new codes. PhecodeX adds granularity to phenotypes in key disease domains that are under-represented in the current phecode structure-including infectious disease, pregnancy, congenital anomalies, and neonatology-and is a more robust representation of the medical phenome for global use in discovery research. phecodeX is available at https://github.com/PheWAS/phecodeX.

Medical subject headings