A21: Tularemia
Codes under A21 (Tularemia). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| A21.0 | Ulceroglandular tularemia | ✓ |
| A21.0 | Ulceroglandular tularemia | ✓ |
| A21.1 | Oculoglandular tularemia | ✓ |
| A21.1 | Oculoglandular tularemia | ✓ |
| A21.2 | Pulmonary tularemia | ✓ |
| A21.2 | Pulmonary tularemia | ✓ |
| A21.3 | Gastrointestinal tularemia | ✓ |
| A21.3 | Gastrointestinal tularemia | ✓ |
| A21.7 | Generalized tularemia | ✓ |
| A21.7 | Generalized tularemia | ✓ |
| A21.8 | Other forms of tularemia | ✓ |
| A21.8 | Other forms of tularemia | ✓ |
| A21.9 | Tularemia, unspecified | ✓ |
| A21.9 | Tularemia, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code A21?
A21 is an ICD-10-CM category covering Tularemia. It contains 14 more specific diagnosis codes, 14 of which are billable.
Is A21 a billable code?
No — A21 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 A21.0 — Ulceroglandular tularemia). 14 of the 14 codes under A21 are billable.
What codes fall under A21?
A21 includes A21.0, A21.0, A21.1, A21.1, A21.2, plus 9 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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