ICD-10-CM · Chapter 11 · K00-K95
K81 Cholecystitis
Excludes 1 (cannot be coded together)
- cholecystitis with cholelithiasis (K80.-)
Use Additional Code
- code if applicable for associated gangrene of gallbladder (K82.A1), or perforation of gallbladder (K82.A2)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| K81..0 | Acute cholecystitis | Yes |
| K81..1 | Chronic cholecystitis | Yes |
| K81..2 | Acute cholecystitis with chronic cholecystitis | Yes |
| K81..9 | Cholecystitis, unspecified | Yes |
Last reviewed: September 2026