ICD-10 K73
Non-Billable HeaderChronic hepatitis, not elsewhere classified
About ICD-10-CM K73
ICD-10-CM code K73 represents Chronic hepatitis, not elsewhere classified. This is a non-billable header code in the Digestive System chapter (block K73). The 2026 edition of ICD-10-CM K73 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with K73. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- alcoholic hepatitis (chronic) (K70.1-)
- drug-induced hepatitis (chronic) (K71.-)
- granulomatous hepatitis (chronic) NEC (K75.3)
- reactive, nonspecific hepatitis (chronic) (K75.2)
- viral hepatitis (chronic) (B15-B19)
Use Additional Code
When coding K73, also report these additional codes when applicable.
- code, if applicable, for ascites (R18.8)
Medicare LCD Coverage for K73
Local Coverage Determinations (LCDs) from CMS MACs that list K73 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing K73.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but K73 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with K73
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To K73
Other codes in section K70-K77 (Diseases of liver).
ICD-10 K73, Billing FAQ
Is ICD-10 code K73 billable? +
No, K73 is a non-billable header code. Use a more specific child code from block K73 when submitting claims.
What codes are Type 1 Excludes for K73? +
Type 1 Excludes (never code together with K73): alcoholic hepatitis (chronic) (K70.1-); drug-induced hepatitis (chronic) (K71.-); granulomatous hepatitis (chronic) NEC (K75.3)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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