Is G40.B a billable code?
No. G40.B is a header code that groups 4 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
G40.B: Juvenile myoclonic epilepsy [impulsive petit mal]
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
G40.B groups related diagnoses under juvenile myoclonic epilepsy [impulsive petit mal]. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under G40.B
- G40.B01Juvenile myoclonic epilepsy, not intractable, with status epilepticus
- G40.B09Juvenile myoclonic epilepsy, not intractable, without status epilepticus
- G40.B11Juvenile myoclonic epilepsy, intractable, with status epilepticus
- G40.B19Juvenile myoclonic epilepsy, intractable, without status epilepticus
Other codes in G40 Epilepsy and recurrent seizures
- G40.0Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onsetheader
- G40.1Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizuresheader
- G40.2Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizuresheader
- G40.3Generalized idiopathic epilepsy and epileptic syndromesheader
- G40.4Other generalized epilepsy and epileptic syndromesheader
- G40.5Epileptic seizures related to external causesheader
- G40.8Other epilepsy and recurrent seizuresheader
- G40.9Epilepsy, unspecifiedheader
- G40.AAbsence epileptic syndromeheader
- G40.CLafora progressive myoclonus epilepsyheader
G40.B questions
What does G40.B mean?
G40.B is the ICD-10-CM code for Juvenile myoclonic epilepsy [impulsive petit mal]. It is in chapter 6, Diseases of the nervous system (G00-G99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.