There are 2 ICD-9-CM codes below 345.6 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
Diagnosis Definition(s)
Myoclonus epilepsy of infancy and early childhood, characterized by seizures involving the muscles of the neck, trunk, and limbs, and manifested by nodding of the head and flexion of the arms. The seizures are associated with brain abnormalities and frequent mental retardation.