ICD-10-CM category
R50: Fever of other and unknown origin
Codes under R50 (Fever of other and unknown origin). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| R50.2 | Drug induced fever | ✓ |
| R50.8 | Other specified fever | — |
| R50.9 | Fever, unspecified | ✓ |
| R50.81 | Fever presenting with conditions classified elsewhere | ✓ |
| R50.82 | Postprocedural fever | ✓ |
| R50.83 | Postvaccination fever | ✓ |
| R50.84 | Febrile nonhemolytic transfusion reaction | ✓ |
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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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