Fielding-Singh V, et al. - Given a novel billable code for intraoperative cardiac arrest was presented with the International Classification of Diseases, Tenth Revision, classification system, researchers focused on intraoperative cardiac arrest in the United States, by utilizing a national administrative database in this retrospective study. They used the National Inpatient Sample to select hospital admissions including patients ≥ 18 years of age who had operating room procedures in 2016. Hospital admissions involving intraoperative cardiac arrest were estimated to be 5,230, generating an estimated incidence of 5.7 per 10,000 hospital admissions. Although findings revealed that rare admissions involved an intraoperative cardiac arrest, but high in-hospital mortality was reported in relation to admissions involving an intraoperative cardiac arrest. The factors that displayed an independent link with increased risk-adjusted odds of intraoperative cardiac arrest were: black or missing race; cardiac, thoracic, or vascular surgery; congestive heart failure; pulmonary circulation disorders; peripheral vascular disease; end-stage renal disease; and fluid and electrolyte disorders.