A22

Non-billable

Anthrax

A22 is the ICD-10-CM code for Anthrax. It is a non-billable category code — use a more specific child code such as A22.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
6
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

Includes

  • infection due to Bacillus anthracis

Frequently asked questions

What is ICD-10 code A22?
A22 is the ICD-10-CM code for "Anthrax". It falls under A00-B99 Certain infectious and parasitic diseases.
Is A22 a billable code?
No — A22 is a non-billable header code. Use a more specific child code (such as A22.0) for billing.
What are the subcodes of A22?
A22 has 6 more specific child codes, including A22.0, A22.1, A22.2.

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

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