ICD-10 Code G40.211 – Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, with status epilepticus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G40.211 – Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, with status epilepticus
What it is
This code identifies focal symptomatic epilepsy with complex partial seizures that do not respond to treatment and are occurring with status epilepticus. Use it when the record clearly documents both intractability and ongoing seizure activity.
Clinical signs
Typical findings include recurrent focal seizures with impaired awareness, possible automatisms, and prolonged or repeated seizures without full recovery. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents symptomatic focal epilepsy, complex partial seizures, and that the condition is intractable. It also requires documentation of status epilepticus, not just a single prolonged seizure. If the note says “refractory” or “drug resistant,” confirm that it applies to this seizure disorder.
Do not use for
Do not use this code if status epilepticus is absent, or if the epilepsy is not documented as intractable. Check documentation when the seizure type is generalized, unspecified, or another focal subtype.
Coding tip
Confirm all three elements—focal symptomatic epilepsy, intractability, and status epilepticus—before assigning G40.211.