2008 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 > Infantile Cerebral Palsy 343.* > 2008 ICD-9-CM Diagnosis 343.3 Congenital monoplegia  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 343.3 can be accessed here. 343.3 is a specific code that can be used to specify a diagnosis 343.3 contains 4 index entries View the ICD-9-CM Volume 1 343.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 343.3: Monoplegia 344.5 congenital or infantile (cerebral) (spastic) (spinal) 343.3 infantile (cerebral) (spastic) (spinal) 343.3 Palsy (see also Paralysis) 344.9 cerebral (congenital) (infantile) (spastic) 343.9 monoplegic 343.3 Paralysis, paralytic (complete) (incomplete) 344.9 extremity spastic (hereditary) 343.3 noncongenital or noninfantile 344.1