Table 1.

Frequency of abdominal vein thrombosis

Thrombosis classified based on ICD-10 codes	No. of cases (%)
Portal vein thrombosis (I81)	194 (41.5)
Mesenteric vein thrombosis (K55.0)	18 (3.9)
Thrombosis of vena cava (I82.2)	81 (17.3)
Thrombosis of renal vein (I82.3)	18 (3.9)
Thrombosis of other specified vein (I82.8)	96 (20.6)
Thrombosis of unspecified vein (I82.9) Thrombosis of isolated splenic vein	52 (11.1) 3 (0.6)
Thrombosis of vena cava + renal vein	3 (0.6)
Thrombosis of vena cava + other specified veins	1 (0.2)
Thrombosis of vena cava + renal vein + other specified veins	1 (0.2)
Total cases in this study	467 (100)