Calculus of bile duct w acute and chronic cholecyst w obst

This code signifies the presence of gallstones within the bile duct (choledocholithiasis) accompanied by both acute and chronic inflammation of the gallbladder (cholecystitis), with evidence of biliary obstruction. This represents a complex and often severe form of gallbladder and bile duct disease.

Apply this code when documentation clearly indicates gallstones in the common bile duct, coexisting acute and chronic cholecystitis, and an obstructive component. This is typically supported by imaging studies (e.g., ultrasound, MRCP, ERCP) confirming choledocholithiasis and obstruction, alongside clinical findings and pathology reports consistent with acute and chronic cholecystitis.

• Ensure documentation explicitly states both acute and chronic cholecystitis, in addition to bile duct calculus and obstruction.
• Do not use this code if only acute or only chronic cholecystitis is present, even with obstruction and bile duct stones.
• Verify the presence of obstruction; if absent, a different code for calculus of bile duct with acute and chronic cholecystitis without obstruction (K80.46) would be more appropriate.