G40.3 - Generalized idiopathic epilepsy and epileptic syndromes

The ICD 10 Code for Generalized idiopathic epilepsy and epileptic syndromes is listed as G40.3.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	G40.3
Description:	Generalized idiopathic epilepsy and epileptic syndromes Code also MERRF syndrome, if applicable, (E88.42)

Chapter	Diseases of the nervous system (G00-G99)
Block	Episodic and paroxysmal disorders (G40-G47)
Parent	G40 - Epilepsy and recurrent seizures
ICD-10-CM Children (deeper level / typically more specific) of G40.3:
G40.30 - Generalized idiopathic epilepsy and epileptic syndromes, not intractable
G40.31 - Generalized idiopathic epilepsy and epileptic syndromes, intractable
ICD-10-CM Siblings (same level / similar specificity) of G40.3:
G40.0 - Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset
G40.1 - Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures
G40.2 - Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures
G40.4 - Other generalized epilepsy and epileptic syndromes
G40.5 - Epileptic seizures related to external causes
G40.8 - Other epilepsy and recurrent seizures
G40.9 - Epilepsy, unspecified
G40.A - Absence epileptic syndrome
G40.B - Juvenile myoclonic epilepsy [impulsive petit mal]