K80.4 vs K83.0
K80.4 (Calculus of bile duct with cholecystitis) compared with K83.0 (Cholangitis), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. K83.0 carries an Excludes1 note covering K80.4: “cholangitis with choledocholithiasis (K80.3-, K80.4-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| K80.4Calculus of bile duct with cholecystitis | K83.0Cholangitis | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Calculus of bile duct with cholecystitis is a non-billable ICD-10-CM category code (K80.4). | Cholangitis is a non-billable ICD-10-CM category code (K83.0). |
| Includes | Any condition listed in K80.5 with cholecystitis (with cholangitis) | — |
| Use additional code | code if applicable for associated gangrene of gallbladder (K82.A1), or perforation of gallbladder (K82.A2) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources