A22
⚠ Non-billable (Header)Anthrax
Certain infectious and parasitic diseases (A00-B99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
ℹ️ Includes
- • infection due to Bacillus anthracis
Child Codes (6)
Clinical Description
ICD-10-CM code A22 represents anthrax. This code falls under the Certain infectious and parasitic diseases (A00-B99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
Frequently Asked Questions
What is ICD-10 code A22?
ICD-10-CM code A22 is "Anthrax". It belongs to the category: Certain infectious and parasitic diseases (A00-B99).
Is A22 a billable ICD-10 code?
No, A22 is a non-billable header code. A more specific child code must be used for billing.
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)