ICD-10 Code K80.46 – Calculus of bile duct with acute and chronic cholecystitis without obstruction (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K80.46 – Calculus of bile duct with acute and chronic cholecystitis without obstruction
What it is
This code identifies gallstones in the bile duct together with both acute and chronic inflammation of the gallbladder, without evidence of obstruction. Use it when the documentation clearly combines these conditions.
Clinical signs
Typical findings include right upper quadrant pain, nausea, vomiting, and signs of gallbladder inflammation. Clinical features vary; refer to documentation for confirmed bile duct stones and the acute-on-chronic cholecystitis pattern.
When to use this code
Use K80.46 when the provider documents calculus of the bile duct and specifies acute and chronic cholecystitis, with no obstruction noted. It fits operative, imaging, or discharge documentation that states both conditions together. Check documentation if obstruction status is unclear.
Do not use for
Do not use this code if the record shows gallstones without bile duct involvement, or if obstruction is documented. Also avoid it when only acute or only chronic cholecystitis is stated.
Coding tip
Confirm the exact wording in the record, especially the presence of bile duct calculus and the absence of obstruction, before assigning K80.46.