K83.8 Other specified diseases of biliary tract

The ICD-10-CM code for Other specified diseases of biliary tract is K83.8 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

11: Diseases of the digestive system (K00-K95)

Section

K80-K87: Disorders of gallbladder, biliary tract and pancreas (K80-K87)

Category K83

11 codes (9 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to K83.8:

• Cholangiectasis
• Cholangiohepatitis
• Hematobilia
• Atrophy, atrophic (of) › bile duct (common) (hepatic)
• Adhesions, adhesive (postinfective) › bile duct (common) (hepatic)
• Adhesions, adhesive (postinfective) › common duct
• Cicatrix (adherent) (contracted) (painful) (vicious) › bile duct (common) (hepatic)
• Cicatrix (adherent) (contracted) (painful) (vicious) › common duct

Inclusion Terms

• Adhesions of biliary tract
• Atrophy of biliary tract
• Hypertrophy of biliary tract
• Ulcer of biliary tract

U.S. Hospital Utilization

• An estimated 80,925 U.S. inpatient stays in 2023 included K83.8 among the documented diagnoses.
• 4,515 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Chapter 11 reserved for future expansion

11. Chapter 11: Diseases of the Digestive System (K00-K95) Reserved for future guideline expansion

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)