A22: Anthrax
Codes under A22 (Anthrax). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| A22.0 | Cutaneous anthrax | ✓ |
| A22.0 | Cutaneous anthrax | ✓ |
| A22.1 | Pulmonary anthrax | ✓ |
| A22.1 | Pulmonary anthrax | ✓ |
| A22.2 | Gastrointestinal anthrax | ✓ |
| A22.2 | Gastrointestinal anthrax | ✓ |
| A22.7 | Anthrax sepsis | ✓ |
| A22.7 | Anthrax sepsis | ✓ |
| A22.8 | Other forms of anthrax | ✓ |
| A22.8 | Other forms of anthrax | ✓ |
| A22.9 | Anthrax, unspecified | ✓ |
| A22.9 | Anthrax, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code A22?
A22 is an ICD-10-CM category covering Anthrax. It contains 12 more specific diagnosis codes, 12 of which are billable.
Is A22 a billable code?
No — A22 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example A22.0 — Cutaneous anthrax). 12 of the 12 codes under A22 are billable.
What codes fall under A22?
A22 includes A22.0, A22.0, A22.1, A22.1, A22.2, plus 7 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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