ICD-10 Code G40.A01 – Absence epileptic syndrome, not intractable, with status epilepticus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G40.A01 – Absence epileptic syndrome, not intractable, with status epilepticus
What it is
This code identifies absence epileptic syndrome with status epilepticus when the seizures are not documented as intractable. It applies when the record shows a generalized absence epilepsy pattern and a prolonged or recurrent seizure state.
Clinical signs
Typical findings include brief staring spells, impaired awareness, and abrupt return to baseline. In status epilepticus, the chart should support ongoing or repeated seizure activity; clinical features vary, refer to documentation.
When to use this code
Use this code when the provider documents absence epileptic syndrome and specifies status epilepticus, while also stating the condition is not intractable. It may be used for inpatient or emergency encounters where the seizure state is clearly documented. If the note only says “absence seizures,” check documentation.
Do not use for
Do not use it for absence epilepsy without status epilepticus, or when the record says intractable. Do not assign it if the seizure type or epilepsy syndrome is unclear.
Coding tip
Match both qualifiers exactly: absence epileptic syndrome, not intractable, and status epilepticus.