2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Circulatory System 390-459 > Diseases Of Veins And Lymphatics, And Other Diseases Of Circulatory System 451-459 > Phlebitis And Thrombophlebitis 451.* > 2008 ICD-9-CM Diagnosis 451.81 Phlebitis and thrombophlebitis of iliac vein  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 Therefore, this code may be out of date.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 451.81 can be accessed here. 451.81 is a specific code that can be used to specify a diagnosis 451.81 contains 3 index entries View the ICD-9-CM Volume 1 451.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 451.81: Phlebitis (infective) (pyemic) (septic) (suppurative) 451.9 iliac vein 451.81 Thrombophlebitis 451.9 iliac vein 451.81 Thrombosis, thrombotic (marantic) (multiple) (progressive) (vein) (vessel) 453.9 iliac (vein) 453.8 with inflammation or phlebitis 451.81