ICD-10 Code G40.B19 – Juvenile myoclonic epilepsy, intractable, without status epilepticus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G40.B19 – Juvenile myoclonic epilepsy, intractable, without status epilepticus
What it is
G40.B19 identifies juvenile myoclonic epilepsy that does not respond adequately to treatment and is not documented with status epilepticus. Use it when the record clearly states this specific seizure disorder and intractability.
Clinical signs
Typical findings include myoclonic jerks, often shortly after waking, and generalized seizures consistent with juvenile myoclonic epilepsy. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents juvenile myoclonic epilepsy as intractable and there is no mention of status epilepticus. It is appropriate for neurology notes, problem lists, or discharge diagnoses that specify this exact condition. Check documentation if the seizure type or control status is unclear.
Do not use for
Do not use it if the epilepsy is not documented as intractable, or if status epilepticus is present. Do not assign it for nonspecific seizure disorders or other epilepsy syndromes.
Coding tip
Match the code to the exact wording in the chart, especially the terms “intractable” and “without status epilepticus.”