ICD-10-CM > G00-G99 > G40-G47 > G40 > G40.3 > G40.30 > G40.309 G40.309 Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus Billable/Specific Copy Code Copy Description Applicable To Generalized idiopathic epilepsy and epileptic syndromes NOS