Get started free

G40.A

Non-billable

Absence epileptic syndrome

G40.A is the ICD-10-CM code for Absence epileptic syndrome. It is a non-billable category code — use a more specific child code such as G40.A0 for billing.

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

G00-G99 Diseases of the nervous system

Includes

  • •Childhood absence epilepsy [pyknolepsy]
  • •Juvenile absence epilepsy
  • •Absence epileptic syndrome, NOS

Frequently asked questions

What is ICD-10 code G40.A?
G40.A is the ICD-10-CM code for "Absence epileptic syndrome". It falls under G00-G99 Diseases of the nervous system.
Is G40.A a billable code?
No — G40.A is a non-billable header code. Use a more specific child code (such as G40.A0) for billing.
What are the subcodes of G40.A?
G40.A has 2 more specific child codes, including G40.A0, G40.A1.

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

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →