K73.9 Chronic hepatitis, unspecified

The ICD-10-CM code for Chronic hepatitis, unspecified is K73.9 (FY2026). It is a billable, claim-ready diagnosis code.

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

Also Known As

ICD-10-CM Alphabetic Index entries that lead to K73.9:

• Hepatitis › chronic
• Inflammation, inflamed, inflammatory (with exudation) › liver (capsule) › chronic

U.S. Hospital Utilization

• An estimated 4,050 U.S. inpatient stays in 2023 included K73.9 among the documented diagnoses.

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)

Cite This Page

Reference K73.9 with the canonical source and edition:

K73.9 — Chronic hepatitis, unspecified. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/K73.9

Canonical URL: https://icd10codingpro.com/codes/K73.9