ICD-10-CM 2027
ICD-10 code for bile duct fistula
From the official ICD-10-CM alphabetic index entry “Fistula (cutaneous) › bile duct (common) (hepatic)”. Page updated September 29, 2026.
About coding bile duct fistula
The ICD-10-CM code for bile duct fistula is K83.3 (Fistula of bile duct). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on K83.3.
Within K83 (other diseases of biliary tract), K83.3 is specifically for fistula of bile duct. Related codes cover cholangitis (K83.0), obstruction of bile duct (K83.1), perforation of bile duct (K83.2), spasm of sphincter of Oddi (K83.4), biliary cyst (K83.5), other specified diseases of biliary tract (K83.8) and disease of biliary tract, unspecified (K83.9).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 444 (Disorders of the Biliary Tract with MCC, relative weight 1.6665), DRG 445 (Disorders of the Biliary Tract with CC, relative weight 1.0872) and DRG 446 (Disorders of the Biliary Tract without CC/MCC, relative weight 0.8124), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific bile duct fistula codes (official index)
- with calculus, stones K83.3 — Fistula of bile duct
Common questions about bile duct fistula ICD-10 codes
What is the ICD-10 code for bile duct fistula?
- K83.3 — Fistula of bile duct. More specific codes apply when the documentation supports them: K83.3.
Is K83.3 billable?
- Yes. K83.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K83.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K83.3 as a principal diagnosis.
Is K83.3 a CC or MCC?
- K83.3 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.