A01: Typhoid and paratyphoid fevers
Codes under A01 (Typhoid and paratyphoid fevers). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| A01.0 | Typhoid fever | — |
| A01.0 | Typhoid fever | — |
| A01.00 | Typhoid fever, unspecified | ✓ |
| A01.00 | Typhoid fever, unspecified | ✓ |
| A01.01 | Typhoid meningitis | ✓ |
| A01.01 | Typhoid meningitis | ✓ |
| A01.1 | Paratyphoid fever A | ✓ |
| A01.1 | Paratyphoid fever A | ✓ |
| A01.02 | Typhoid fever with heart involvement | ✓ |
| A01.02 | Typhoid fever with heart involvement | ✓ |
| A01.2 | Paratyphoid fever B | ✓ |
| A01.2 | Paratyphoid fever B | ✓ |
| A01.03 | Typhoid pneumonia | ✓ |
| A01.03 | Typhoid pneumonia | ✓ |
| A01.3 | Paratyphoid fever C | ✓ |
| A01.3 | Paratyphoid fever C | ✓ |
| A01.04 | Typhoid arthritis | ✓ |
| A01.04 | Typhoid arthritis | ✓ |
| A01.4 | Paratyphoid fever, unspecified | ✓ |
| A01.4 | Paratyphoid fever, unspecified | ✓ |
| A01.05 | Typhoid osteomyelitis | ✓ |
| A01.05 | Typhoid osteomyelitis | ✓ |
| A01.09 | Typhoid fever with other complications | ✓ |
| A01.09 | Typhoid fever with other complications | ✓ |
Frequently asked questions
What is ICD-10-CM code A01?
A01 is an ICD-10-CM category covering Typhoid and paratyphoid fevers. It contains 24 more specific diagnosis codes, 22 of which are billable.
Is A01 a billable code?
No — A01 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 A01.0 — Typhoid fever). 22 of the 24 codes under A01 are billable.
What codes fall under A01?
A01 includes A01.0, A01.0, A01.00, A01.00, A01.01, plus 19 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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