Calculus of bile duct w acute cholecystitis w/o obstruction

This code signifies the presence of gallstones within the bile ducts (choledocholithiasis) accompanied by sudden inflammation of the gallbladder (acute cholecystitis). Importantly, there is no blockage of the bile flow indicated in this specific diagnosis.

Apply this code when documentation confirms both choledocholithiasis and acute cholecystitis, with explicit mention that no obstruction is present. This typically occurs when imaging studies (e.g., ultrasound, MRI) identify stones in the common bile duct and an inflamed gallbladder, but without evidence of biliary obstruction.

• Ensure documentation clearly states "without obstruction" to differentiate from codes indicating obstruction.
• Do not use this code if the cholecystitis is chronic or if there is no mention of acute inflammation.
• Consider sequencing this code after any underlying conditions if applicable, though it often stands as a primary diagnosis.