453.2
ICD-9-CMThis code signifies the presence of a blood clot (thrombus) or an obstruction by an embolus within the inferior vena cava (IVC), excluding conditions specifically classified elsewhere. It represents a blockage in the large vein that carries deoxygenated blood from the lower and middle body into the right atrium of the heart.
Use this code when documentation explicitly states "venous embolism of inferior vena cava" or "thrombosis of inferior vena cava" without further specification of a more precise location or cause. This applies to cases where the IVC itself is the primary site of the clot or embolic event. Supporting documentation would include imaging reports (e.g., ultrasound, CT, MRI venography) confirming the presence of a thrombus or embolus in the IVC.
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