Chronic embolism and thrombosis of right peroneal vein

This code signifies a persistent or long-standing blockage within the right peroneal vein, caused by either an embolus (a traveling clot) or a thrombus (a stationary clot). This condition restricts blood flow in the lower leg, potentially leading to chronic venous insufficiency or post-thrombotic syndrome.

Apply this code when documentation explicitly states a chronic embolism or thrombosis affecting the right peroneal vein. This typically involves patients presenting with symptoms like chronic leg pain, swelling, skin discoloration, or venous ulcers, and confirmed by imaging studies such as ultrasound or venography.

• Ensure documentation specifies "chronic" and clearly identifies the "right peroneal vein" to avoid miscoding.
• Distinguish from acute events (I82.451) and other deep vein thrombosis locations.
• Code any associated complications, such as post-thrombotic syndrome (I87.0-) or venous insufficiency (I87.2-), as secondary diagnoses.