ICD-10 Code G40.219 – Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G40.219 – Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus
What it is
This code identifies focal symptomatic epilepsy with complex partial seizures that are difficult to control and do not include status epilepticus. Use it when the record clearly states intractable epilepsy with this seizure type.
Clinical signs
Complex partial seizures commonly involve impaired awareness, staring, automatisms, or brief confusion. Clinical features vary; refer to documentation, especially when the diagnosis is based on neurologic evaluation or EEG findings.
When to use this code
Use G40.219 when the provider documents focal symptomatic epilepsy, complex partial seizures, and that the condition is intractable. The chart should also indicate there is no status epilepticus. If the seizure type or control status is not stated, check documentation.
Do not use for
Do not use this code for epilepsy without documentation of intractability or for generalized seizure disorders. Also avoid it when status epilepticus is present or when the record does not specify complex partial seizures.
Coding tip
Confirm all three elements—focal symptomatic epilepsy, complex partial seizures, and intractable status—before assigning G40.219.