| K81 | Cholecystitis |
| K81.0 | Acute cholecystitis |
| K81.1 | Chronic cholecystitis |
| K81.2 | Acute cholecystitis with chronic cholecystitis |
| K81.9 | Cholecystitis, unspecified |
| K82 | Other diseases of gallbladder |
| K82.0 | Obstruction of gallbladder |
| K82.1 | Hydrops of gallbladder |
| K82.2 | Perforation of gallbladder |
| K82.3 | Fistula of gallbladder |
| K82.4 | Cholesterolosis of gallbladder |
| K82.8 | Other specified diseases of gallbladder |
| K82.9 | Disease of gallbladder, unspecified |