ICD-10 Code G40.901 – Epilepsy, unspecified, not intractable, with status epilepticus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G40.901 – Epilepsy, unspecified, not intractable, with status epilepticus
What it is
This code identifies epilepsy when the type is not specified, the seizures are not described as intractable, and the patient is in status epilepticus. Use it when documentation confirms ongoing seizure activity or repeated seizures without recovery between events.
Clinical signs
Clinical features vary; refer to documentation. Status epilepticus is typically recognized by prolonged seizure activity or recurrent seizures with incomplete return to baseline, and epilepsy indicates a seizure disorder rather than a single isolated event.
When to use this code
Use this code when the provider documents epilepsy, does not specify the epilepsy type, and also documents status epilepticus. It is appropriate when the record supports non-intractable epilepsy and there is no more specific seizure classification available.
If the note states status epilepticus without confirming epilepsy, check documentation before coding. Also verify that the condition is not described as intractable or as a different seizure disorder with a more specific ICD-10-CM option.
Do not use for
Do not use this code for a single seizure, a resolved seizure episode, or epilepsy described as intractable. Do not assign it when the chart gives a more specific epilepsy type or a different cause of seizure activity.
Coding tip
Code from the provider’s exact wording and confirm both “unspecified” epilepsy and “status epilepticus” are documented before assigning G40.901.