The following fifth-digit subclassification is for use with category 574:

[0-1]

Biliary calculus with acute cholecystitis

Calculus of cystic duct with acute cholecystitis

Cholelithiasis with acute cholecystitis

Any condition classifiable to 574.2 with acute cholecystitis

[0-1]

Biliary calculus with cholecystitis

Calculus of cystic duct with cholecystitis

Cholelithiasis with cholecystitis

Cholecystitis with cholelithiasis NOS

Any condition classifiable to 574.2 with cholecystitis (chronic)

[0-1]

Biliary:

Calculus of cystic duct

Cholelithiasis NOS

Colic (recurrent) of gallbladder

Gallstone (impacted)

[0-1]

Calculus of bile duct [any] with acute cholecystitis

Choledocholithiasis with acute cholecystitis

Any condition classifiable to 574.5 with acute cholecystitis

[0-1]

Calculus of bile duct [any] with cholecystitis (chronic)

Choledocholithiasis with cholecystitis (chronic)

Any condition classifiable to 574.5 with cholecystitis (chronic)

[0-1]

Calculus of:

Choledocholithiasis

Hepatic:

[0-1]

Any condition classifiable to 574.0 and 574.3

[0-1]

Any condition classifiable to 574.1 and 574.4

[0-1]

Any condition classifiable to 574.6 and 574.7

[0-1]

Any condition classifiable to 574.2 and 574.5