2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Diseases Of Arteries, Arterioles, And Capillaries 440-448 > Arterial Embolism And Thrombosis 444.* > 2008 ICD-9-CM Diagnosis 444.21 Arterial embolism and thrombosis of upper extremity  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 Therefore, this code may be out of date.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 444.21 can be accessed here. 444.21 is a specific code that can be used to specify a diagnosis 444.21 contains 8 index entries View the ICD-9-CM Volume 1 444.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 444.21: Embolism 444.9 artery 444.9 extremity 444.22 upper 444.21 extremities 444.22 upper 444.21 peripheral arteries NEC 444.22 upper 444.21 upper extremity 444.21 Occlusion arteries of extremities, lower 444.22 upper 444.21 without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 due to stricture or stenosis 447.1 peripheral arteries (lower extremity) 444.22 upper extremity 444.21 without thrombus or embolus (see also Arteriosclerosis, extremities) 440.20 due to stricture or stenosis 447.1 Thrombosis, thrombotic (marantic) (multiple) (progressive) (vein) (vessel) 453.9 artery, arteries (postinfectional) 444.9 extremities 444.22 upper 444.21 peripheral arteries 444.22 upper 444.21