K73 Chronic hepatitis, not elsewhere classified

The ICD-10-CM code for Chronic hepatitis, not elsewhere classified is K73 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter

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

Section

K70-K77: Diseases of liver (K70-K77)

Category K73

6 codes (5 billable)

FY2026 Status

Stable since FY2024

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