Release-aware, SAS-equivalent Elixhauser comorbidity scoring in R: cross-implementation validation and application to Texas inpatient discharges
An open-source R package is developed covering all eleven releases of both families of Elixhauser comorbidity measures, with a browser-based application over the same functions, and validated it against AHRQ's own SAS programs over 40,027,114 value-level comparisons with zero disagreements.