R56: Convulsions, not elsewhere classified
Codes under R56 (Convulsions, not elsewhere classified). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| R56.0 | Febrile convulsions | — |
| R56.0 | Febrile convulsions | — |
| R56.00 | Simple febrile convulsions | ✓ |
| R56.00 | Simple febrile convulsions | ✓ |
| R56.01 | Complex febrile convulsions | ✓ |
| R56.01 | Complex febrile convulsions | ✓ |
| R56.1 | Post traumatic seizures | ✓ |
| R56.1 | Post traumatic seizures | ✓ |
| R56.9 | Unspecified convulsions | ✓ |
| R56.9 | Unspecified convulsions | ✓ |
Frequently asked questions
What is ICD-10-CM code R56?
R56 is an ICD-10-CM category covering Convulsions, not elsewhere classified. It contains 10 more specific diagnosis codes, 8 of which are billable.
Is R56 a billable code?
No — R56 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 R56.0 — Febrile convulsions). 8 of the 10 codes under R56 are billable.
What codes fall under R56?
R56 includes R56.0, R56.0, R56.00, R56.00, R56.01, 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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