A22.9Billable

Anthrax, unspecified

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

Related codes in category A22

A22AnthraxA22.0Cutaneous anthraxYesA22.1Pulmonary anthraxYesA22.2Gastrointestinal anthraxYesA22.7Anthrax sepsisYesA22.8Other forms of anthraxYes

Frequently asked questions

What is ICD-10 code A22.9?

A22.9 is an ICD-10-CM diagnosis code for Anthrax, unspecified.

Is A22.9 a billable code?

Yes. A22.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is A22.9 in?

A22.9 falls under Chapter 1: Certain infectious and parasitic diseases.

When did A22.9 become effective?

A22.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to A22.9?

A22.9 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.