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K73

Non-billable

Chronic hepatitis, not elsewhere classified

K73 is the ICD-10-CM code for Chronic hepatitis, not elsewhere classified. It is a non-billable category code — use a more specific child code such as K73.0 for billing.

Status
Header (non-billable)
Chapter
K00-K95
Subcodes
5
Edition
FY2026

K00-K95 Diseases of the digestive system

What this means — in plain language

MedlinePlus · NIH

What is hepatitis? Hepatitis is inflammation of the liver . Inflammation is swelling that happens when tissues of the body are injured or infected. It can damage your liver. This swelling and damage can affect how well your liver functions. Hepatitis can be an acute (short-term) infection or a chronic (long-term) infection. Some types of hepatitis cause only acute infections. Other types can cause both acute and…

Read more about Hepatitis at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • •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

  • •code, if applicable, for ascites (R18.8)

Frequently asked questions

What is ICD-10 code K73?
K73 is the ICD-10-CM code for "Chronic hepatitis, not elsewhere classified". It falls under K00-K95 Diseases of the digestive system.
Is K73 a billable code?
No — K73 is a non-billable header code. Use a more specific child code (such as K73.0) for billing.
What are the subcodes of K73?
K73 has 5 more specific child codes, including K73.0, K73.1, K73.2.
What is excluded from K73?
Excludes1 (not coded here): alcoholic hepatitis (chronic) (K70.1-); drug-induced hepatitis (chronic) (K71.-); granulomatous hepatitis (chronic) NEC (K75.3); reactive, nonspecific hepatitis (chronic) (K75.2).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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