Additional file 1: of Electronic health records accurately predict renal replacement therapy in acute kidney injury

Table S1. Table on acute disease categorisation. Patients’ acute disease diagnosis codes were based on ICD-9-CM (International Classification of Diseases, Ninth Revision, Clinical Modification) up till 2015, and SNOMED-CT (Systematized Nomenclature of Medicine - Clinical Terms) after 2015. We classified these diagnoses into 8 categories as shown in the table. These acute diseases were not mutually exclusive, and each patient may have one or more acute illnesses during the index hospitalization. (XLSX 11 kb)