A25: Rat-bite fevers
Codes under A25 (Rat-bite fevers). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| A25.0 | Spirillosis | ✓ |
| A25.0 | Spirillosis | ✓ |
| A25.1 | Streptobacillosis | ✓ |
| A25.1 | Streptobacillosis | ✓ |
| A25.9 | Rat-bite fever, unspecified | ✓ |
| A25.9 | Rat-bite fever, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code A25?
A25 is an ICD-10-CM category covering Rat-bite fevers. It contains 6 more specific diagnosis codes, 6 of which are billable.
Is A25 a billable code?
No — A25 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 A25.0 — Spirillosis). 6 of the 6 codes under A25 are billable.
What codes fall under A25?
A25 includes A25.0, A25.0, A25.1, A25.1, A25.9, plus 1 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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