Calculus of bile duct w cholangitis, unsp, with obstruction

This code signifies the presence of gallstones (calculi) within the bile duct, which has led to inflammation and infection of the bile ducts (cholangitis). The condition is further complicated by an unspecified blockage or impediment to bile flow.

Apply this code when documentation clearly indicates choledocholithiasis (bile duct stones) co-occurring with cholangitis and an obstruction. This is typically supported by imaging studies (e.g., ultrasound, MRCP, ERCP) confirming stones and obstruction, along with clinical signs and symptoms of cholangitis (e.g., fever, jaundice, abdominal pain, elevated liver enzymes, leukocytosis).

• Ensure the documentation specifies both cholangitis and obstruction in addition to the bile duct calculus.
• Do not use this code if the cholangitis or obstruction is specified as acute or chronic; look for more specific codes (e.g., K80.33, K80.34).
• Consider sequencing this code as the primary diagnosis if it is the main reason for the encounter, followed by codes for any underlying causes or associated conditions.