2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Cerebrovascular Disease 430-438 > Occlusion And Stenosis Of Precerebral Arteries 433.* > 2008 ICD-9-CM Diagnosis 433.9 Occlusion and stenosis of unspecified precerebral artery  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 Therefore, this code may be out of date.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 433.9 can be accessed here. 433.9 is a non-specific code that cannot be used to specify a diagnosis 433.9 contains 4 index entries View the ICD-9-CM Volume 1 433.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 433.9 also known as: Precerebral artery NOS Index entries containing 433.9: Arteriosclerosis, arteriosclerotic (artery) (deformans) (diffuse) (disease) (endarteritis) (general) (obliterans) (obliterative) (occlusive) (senile) (with calcification) 440.9 precerebral 433.9 specified artery NEC 433.8 Embolism 444.9 precerebral artery (see also Occlusion, artery, precerebral) 433.9 Narrowing artery NEC 447.1 precerebral NEC 433.9 multiple or bilateral 433.3 specified NEC 433.8 Occlusion artery NEC (see also Embolism, artery) 444.9 precerebral NEC 433.9 late effect - see Late effect(s) (of) cerebrovascular disease multiple or bilateral 433.3 puerperal, postpartum, childbirth 674.0 specified NEC 433.8