A27: Leptospirosis
Codes under A27 (Leptospirosis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| A27.0 | Leptospirosis icterohemorrhagica | ✓ |
| A27.0 | Leptospirosis icterohemorrhagica | ✓ |
| A27.8 | Other forms of leptospirosis | — |
| A27.8 | Other forms of leptospirosis | — |
| A27.9 | Leptospirosis, unspecified | ✓ |
| A27.9 | Leptospirosis, unspecified | ✓ |
| A27.81 | Aseptic meningitis in leptospirosis | ✓ |
| A27.81 | Aseptic meningitis in leptospirosis | ✓ |
| A27.89 | Other forms of leptospirosis | ✓ |
| A27.89 | Other forms of leptospirosis | ✓ |
Frequently asked questions
What is ICD-10-CM code A27?
A27 is an ICD-10-CM category covering Leptospirosis. It contains 10 more specific diagnosis codes, 8 of which are billable.
Is A27 a billable code?
No — A27 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 A27.0 — Leptospirosis icterohemorrhagica). 8 of the 10 codes under A27 are billable.
What codes fall under A27?
A27 includes A27.0, A27.0, A27.8, A27.8, A27.9, plus 5 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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