Impact of the COVID-19 Pandemic on the Surgical Activity of Bellvitge University Hospital

Administrative database was automatically collected. That included demographic, clinical antecedents, surgical team and surgical procedure, primary and secondary diagnoses and principal and secondary surgical procedures. A case-mix grouping system administrative automatic recorded based on the ICD-10-AM International Classification of Diseases. According to the Diagnoses-related Groups (DRG's). the Severity of Illness Index assigns to each patient an overall severity score (from 1 to 4) and mortality risk score (from 1 to 4)