A22Header code — not billable

Anthrax

Chapter
1. Certain infectious and parasitic diseases
Category
A22
Effective date
October 1, 2026

Related codes in category A22

A22.0Cutaneous anthraxYesA22.1Pulmonary anthraxYesA22.2Gastrointestinal anthraxYesA22.7Anthrax sepsisYesA22.8Other forms of anthraxYesA22.9Anthrax, unspecifiedYes

Frequently asked questions

What is ICD-10 code A22?

A22 is an ICD-10-CM diagnosis code for Anthrax.

Is A22 a billable code?

No. A22 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is A22 in?

A22 falls under Chapter 1: Certain infectious and parasitic diseases.

When did A22 become effective?

A22 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to A22?

A22 belongs to category A22, which includes 6 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.