G40.4
Non-billableOther generalized epilepsy and epileptic syndromes
G40.4 is the ICD-10-CM code for Other generalized epilepsy and epileptic syndromes. It is a non-billable category code — use a more specific child code such as G40.40 for billing.
G00-G99 Diseases of the nervous system
Includes
- •Epilepsy with grand mal seizures on awakening
- •Epilepsy with myoclonic absences
- •Epilepsy with myoclonic-astatic seizures
- •Grand mal seizure NOS
- •Nonspecific atonic epileptic seizures
- •Nonspecific clonic epileptic seizures
- •Nonspecific myoclonic epileptic seizures
- •Nonspecific tonic epileptic seizures
- •Nonspecific tonic-clonic epileptic seizures
- •Symptomatic early myoclonic encephalopathy
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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