AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2018 Issue 4; New/Revised ICD-10-CM Codes

Gangrene and Perforation of Gallbladder in Cholecystitis

A new subcategory K82.A, Disorders of gallbladder in diseases classified elsewhere, was created to specifically identify gangrene and/or perforation in cholecystitis. The two new codes in this subcategory are K82.A1, Gangrene of gallbladder in cholecystitis, and K82.A2, Perforation of gallbladder in cholecystitis. Disorders of the gallbladder and biliary tract are common and frequently attributable to cholelithiasis. Prolonged obstruction of the cystic duct or stasis of bile in the gallbladder leads to inflammation of the gallbladder, or “cholecystitis.” Cholecystitis varies in severity from mild inflammation of the gallbladder to severe inflammation resulting in tissue necrosis...

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