K82.8 Other specified diseases of gallbladder

The ICD-10-CM code for Other specified diseases of gallbladder is K82.8 (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 K82

11 codes (9 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to K82.8:

• Acholia
• Rokitansky-Aschoff sinuses (gallbladder)
• Cholecystectasia
• Atrophy, atrophic (of) › cystic duct
• Adhesions, adhesive (postinfective) › gallbladder
• Atrophy, atrophic (of) › gallbladder
• Adhesions, adhesive (postinfective) › cystic duct
• Adhesions, adhesive (postinfective) › pericholecystic

Inclusion Terms

• Adhesions of cystic duct or gallbladder
• Atrophy of cystic duct or gallbladder
• Cyst of cystic duct or gallbladder
• Dyskinesia of cystic duct or gallbladder
• Hypertrophy of cystic duct or gallbladder
• Nonfunctioning of cystic duct or gallbladder
• Ulcer of cystic duct or gallbladder

U.S. Hospital Utilization

• An estimated 113,615 U.S. inpatient stays in 2023 included K82.8 among the documented diagnoses.
• 4,020 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)