2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Other Disorders Of The Central Nervous System 340-349 > Epilepsy 345.* > 2006 ICD-9-CM Diagnosis 345.6 Infantile spasms View the most recent version of ICD-9-CM 345.6 An epileptic syndrome characterized by the triad of infantile spasms, hypsarrhythmia, and arrest of psychomotor development at seizure onset. The majority present between 3-12 months of age, with spasms consisting of combinations of brief flexor or extensor movements of the head, trunk, and limbs. The condition is divided into two forms: cryptogenic (idiopathic) and symptomatic (secondary to a known disease process such as intrauterine infections; nervous system abnormalities; BRAIN DISEASES, METABOLIC, INBORN; prematurity; perinatal asphyxia; TUBEROUS SCLEROSIS; etc.). 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. 345.6 is a non-specific code that cannot be used to specify a diagnosis 345.6 contains 9 index entries View the ICD-9-CM Volume 1 345.* hierarchy Alternate Terminology Hypsarrhythmia Lightning spasms Salaam attacks 345.6 Excludes salaam tic (781.0)  Index entries containing 345.6: Attack salaam (see also Epilepsy) 345.6 Contraction, contracture, contracted infantile (see also Epilepsy) 345.6 Convulsions (idiopathic) 780.39 salaam (see also Epilepsy) 345.6 Hypsarrhythmia (see also Epilepsy) 345.6 Seizure 780.39 salaam (see also Epilepsy) 345.6 Spasm, spastic, spasticity (see also condition) 781.0 infantile (see also Epilepsy) 345.6 lightning (see also Epilepsy) 345.6 nodding 307.3 infantile (see also Epilepsy) 345.6 salaam (infantile) (see also Epilepsy) 345.6