<prompt> Hinchey classification is used for perforations of colon secondary to -TraumaCarcinomaDiverticulitisInflammatory enteropathy  <response>: Ans. is c i.e., Diverticulitis Hinchey Classification is used to describe perforations of the colon due to diverticulitis. The Hinchey classification - proposed by Hinchey et al. in 1979 classifies a colonic perforation due to diverticular disease. The classification is I-IV:i Hinchey I - localised abscess para-colonicii Hinchey II - pelvic abscessiii Hinchey III - purulent peritonitis the presence of pus in the abdominal cavityiv Hinchey IV - feculent peritonitis. Intestinal perforation allowing feces into abdominal cavity The Hinchey classification is useful as it guides surgeons as to how conservative they can be in emergency surgery. Recent studies have shown with anything up to a Hinchey III, a laparoscopic wash-out is a safe procedure avoiding the need for a laparotomy and stoma formation. 