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B16

Non-billable

Acute hepatitis B

B16 is the ICD-10-CM code for Acute hepatitis B. It is a non-billable category code — use a more specific child code such as B16.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
4
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

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. What is hepatitis B? Hepatitis B is a type of viral hepatitis. It can cause an acute (short-term) or chronic (long-term) infection. People with an acute infection usually get…

Read more about Hepatitis B at MedlinePlus ↗

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

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code B16?
B16 is the ICD-10-CM code for "Acute hepatitis B". It falls under A00-B99 Certain infectious and parasitic diseases.
Is B16 a billable code?
No — B16 is a non-billable header code. Use a more specific child code (such as B16.0) for billing.
What are the subcodes of B16?
B16 has 4 more specific child codes, including B16.0, B16.1, B16.2.

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

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