ICD-10 Code G40.B09 – Juvenile myoclonic epilepsy, not intractable, without status epilepticus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G40.B09 – Juvenile myoclonic epilepsy, not intractable, without status epilepticus
What it is
Use this code for juvenile myoclonic epilepsy (JME) when the condition is not intractable and there is no status epilepticus. It identifies a specific epilepsy syndrome with myoclonic seizures, usually beginning in adolescence.
Clinical signs
Typical features include brief, shock-like muscle jerks, often on awakening, and may also include generalized tonic-clonic or absence seizures. Clinical features vary; refer to documentation.
When to use this code
Use G40.B09 when the record clearly documents juvenile myoclonic epilepsy and states it is not intractable. Apply it when there is no mention of status epilepticus in the encounter or problem list.
Choose this code for confirmed JME in outpatient, inpatient, or follow-up documentation when the provider specifies the seizure disorder as stable or controlled. Check documentation if the note only says epilepsy or seizure disorder.
Do not use for
Do not use this code if the epilepsy is intractable, or if status epilepticus is documented. Do not use it for nonspecific seizure disorders or other epilepsy syndromes.
Coding tip
Match all three elements in the note: juvenile myoclonic epilepsy, nonintractable, and no status epilepticus.