B04

Billable

Monkeypox

B04 is the ICD-10-CM code for Monkeypox. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
A00-B99
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

What this means — in plain language

MedlinePlus · NIH

What is mpox? Mpox, which used to be called monkeypox, is a disease caused by the monkeypox virus. This virus is in the same family of viruses as the smallpox virus. Mpox can be spread between animals and people, but it's mainly spread through close contact with someone who has it. It is found regularly in parts of Central, Eastern and West Africa. The virus that causes it has been found in small rodents, monkeys,…

Read more about Mpox at MedlinePlus ↗

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

Includes

  • Mpox

Frequently asked questions

What is ICD-10 code B04?
B04 is the ICD-10-CM code for "Monkeypox". It falls under A00-B99 Certain infectious and parasitic diseases.
Is B04 a billable code?
Yes — B04 is a billable, specific ICD-10-CM code valid for reimbursement.

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

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