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G40.1

Non-billable

Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures

G40.1 is the ICD-10-CM code for Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures. It is a non-billable category code — use a more specific child code such as G40.10 for billing.

Status
Header (non-billable)
Chapter
G00-G99
Parent
G40
Subcodes
2
Edition
FY2026

G00-G99 Diseases of the nervous system

Includes

  • •Attacks without alteration of consciousness
  • •Epilepsia partialis continua [Kozhevnikof]
  • •Simple partial seizures developing into secondarily generalized seizures

Frequently asked questions

What is ICD-10 code G40.1?
G40.1 is the ICD-10-CM code for "Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures". It falls under G00-G99 Diseases of the nervous system.
Is G40.1 a billable code?
No — G40.1 is a non-billable header code. Use a more specific child code (such as G40.10) for billing.
What are the subcodes of G40.1?
G40.1 has 2 more specific child codes, including G40.10, G40.11.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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