ICD-10 Code G40.803 – Other epilepsy, intractable, with status epilepticus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G40.803 – Other epilepsy, intractable, with status epilepticus
What it is
This code identifies a type of epilepsy that does not fit a more specific category, is documented as intractable, and includes status epilepticus. Use it when the record clearly states both poor seizure control and ongoing or prolonged seizure activity.
Clinical signs
Clinical features vary; refer to documentation. Status epilepticus usually means seizures are continuous or recur without full recovery between episodes, and the epilepsy is described as difficult to control with standard therapy.
When to use this code
Use this code when the provider documents “other epilepsy,” “intractable,” and “status epilepticus” together. It applies when the seizure disorder is not classified elsewhere and the chart supports persistent seizures despite treatment. If the record lacks one of these elements, check documentation before coding.
Do not use for
Do not use it if the epilepsy type is more specific and separately indexed, or if status epilepticus is not documented. Do not assume intractability from medication use alone; check documentation.
Coding tip
Code only from provider wording; all three elements must be documented for accurate assignment.