2006 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 > 2006 ICD-9-CM Diagnosis 452 Portal vein thrombosis View the most recent version of ICD-9-CM 452 452 is a specific code that can be used to specify a diagnosis 452 contains 7 index entries Alternate Terminology Portal (vein) obstruction 452 Excludes hepatic vein thrombosis (453.0) phlebitis of portal vein (572.1)  Index entries containing 452: Block portal (vein) 452 Embolism 444.9 portal (vein) 452 vein 453.9 portal 452 Obstruction, obstructed, obstructive portal (circulation) (vein) 452 Pseudoangioma 452 Thrombosis, thrombotic (marantic) (multiple) (progressive) (septic) (vein) (vessel) 453.9 liver (venous) 453.0 portal vein 452 portal 452 due to syphilis 093.89 infectional or septic 572.1