I82.5 - Chronic embolism and thrombosis of deep veins of lower extremity
I82.52 - Chronic embolism and thrombosis of iliac vein
I82.521 - Chronic embolism and thrombosis of right iliac vein
I82.522 - Chronic embolism and thrombosis of left iliac vein
I82.523 - Chronic embolism and thrombosis of iliac vein, bilateral
I82.529 - Chronic embolism and thrombosis of unspecified iliac vein