AHA Coding Clinic® for ICD-9 - 2004 Issue 4; VOLUMES 1 AND 2 NEW/REVISED DIAGNOSIS CODES

Venous Embolism and Thrombosis of Lower Extremity

Effective October 1, 2004, new codes have been created to identify venous embolism and thrombosis of the lower extremity. Prior to this change, these conditions were reported with code 453.8, Other venous embolism and thrombosis of other specified veins. Venous thromboembolism (VTE) refers to occlusion within the venous system. It includes deep vein thrombosis (DVT), typically of the lower extremities, and embolism to the pulmonary vasculature. DVT can cause pain in the leg, and can lead to complications if the thrombus breaks off and travels through the bloodstream to the lung. DVT is more likely to occur in...

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