K81 Cholecystitis

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Cholecystitis is K81 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
K80-K87: Disorders of gallbladder, biliary tract and pancreas (K80-K87)
Category K81
5 codes (4 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together with K81.
  • cholecystitis with cholelithiasis (K80.-)
Use Additional Code
  • code if applicable for associated gangrene of gallbladder (K82.A1), or perforation of gallbladder (K82.A2)

Official Coding Guidelines

Chapter 11 reserved for future expansion

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

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.11

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

References

Related Codes

More Specific Codes

K81.0 Acute cholecystitis K81.1 Chronic cholecystitis K81.2 Acute cholecystitis with chronic cholecystitis K81.9 Cholecystitis, unspecified

Related Codes in K81

K81.0 Acute cholecystitis K81.1 Chronic cholecystitis K81.2 Acute cholecystitis with chronic cholecystitis K81.9 Cholecystitis, unspecified
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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