Accuracy of diagnostic codes and algorithms used to identify connective tissue diseases in electronic health records and administrative databases: systematic review and meta-analysis.
ObjectiveTo assess the accuracy of codes and algorithms used to identify selected connective tissue diseases (CTDs) in electronic health records (EHRs) and administrative databases. MethodsWe searched MEDLINE, Embase, and CENTRAL databases for studies that validated case definitions in EHRs against a reference standar...