ICD-10 Code K80.45 – Calculus of bile duct with chronic cholecystitis with obstruction (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K80.45 – Calculus of bile duct with chronic cholecystitis with obstruction
What it is
This code identifies gallstones in the bile duct together with chronic inflammation of the gallbladder and blockage of bile flow. Use it when the documentation clearly links all three conditions.
Clinical signs
Common findings include biliary colic, right upper quadrant pain, jaundice, or signs of chronic gallbladder disease. Clinical features vary; refer to documentation.
When to use this code
Use K80.45 when the provider documents a calculus in the bile duct, chronic cholecystitis, and obstruction in the same encounter. It is appropriate when the obstruction is part of the recorded diagnosis, not merely suspected.
If the record only states gallstones, chronic cholecystitis, or bile duct obstruction separately, check documentation before assigning this code. Code only what is clearly supported in the note.
Do not use for
Do not use this code for uncomplicated gallstones, acute cholecystitis, or bile duct obstruction without documented calculus and chronic cholecystitis. Check documentation.
Coding tip
Confirm that the bile duct stone, chronic cholecystitis, and obstruction are all documented together before coding K80.45.