<prompt> Elective cholecystectomy isClean contaminatedCleanDiyContaminated  <response>: Clean no viscus opened EX: thyroid, breast surgeries Clean-contaminated viscus opened, minimal spillage Cholecystectomy, Gastric surgery Contaminated open viscus with spillage or inflammatory disease Inflamed appendix, rectal surgeries Diy pus or perforation, or incision through an abscess Id wound debridement 