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 444.1 Embolism and thrombosis of thoracic aorta  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 Therefore, this code may be out of date.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 444.1 can be accessed here. 444.1 is a specific code that can be used to specify a diagnosis 444.1 contains 4 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. 444.1 also known as: Embolism or thrombosis of aorta (thoracic) Index entries containing 444.1: Embolism 444.9 aorta, aortic 444.1 abdominal 444.0 bifurcation 444.0 saddle 444.0 thoracic 444.1 Thrombosis, thrombotic (marantic) (multiple) (progressive) (vein) (vessel) 453.9 aorta, aortic 444.1 abdominal 444.0 bifurcation 444.0 saddle 444.0 terminal 444.0 thoracic 444.1 valve - see Endocarditis, aortic