K83Other diseases of biliary tract

K83 is the ICD-10-CM diagnosis code for other diseases of biliary tract. It belongs to block K80-K87 (disorders of gallbladder, biliary tract and pancreas) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: K83.0 (cholangitis), K83.1 (duct), K83.2 (duct), K83.3 (duct), K83.4 (Oddi), K83.5 (cyst), K83.8 (tract) and K83.9 (unspecified).

Don't report K83 together with the conditions in its Excludes1 note: postcholecystectomy syndrome (K91.5).

The conditions in its Excludes2 note aren't part of K83, but may be coded alongside it if the patient has both: conditions involving the gallbladder (K81-K82) and conditions involving the cystic duct (K81-K82).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.