ICD-10 Code G40.919 – Epilepsy, unspecified, intractable, without status epilepticus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G40.919 – Epilepsy, unspecified, intractable, without status epilepticus
What it is
This code identifies epilepsy when the type is not specified, seizures remain hard to control, and status epilepticus is not present. Use it when the record documents intractable epilepsy but does not name a more specific epilepsy category.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see recurrent unprovoked seizures despite ongoing management, with no mention of continuous seizure activity or status epilepticus.
When to use this code
Use G40.919 when the provider documents unspecified epilepsy and states it is intractable or refractory. It also fits when seizure control remains poor despite treatment, but the note does not identify a more specific epilepsy syndrome or seizure type. Check documentation if status epilepticus is mentioned.
Do not use for
Do not use this code if the epilepsy type is specified and a more exact code is available. Do not use it for status epilepticus, or when the record does not support intractable disease.
Coding tip
Verify that “intractable” or an equivalent term is documented before assigning this code.