Chronic embolism and thrombosis of left tibial vein

This code signifies a persistent or long-standing blockage within the left tibial vein, caused by either an embolus (a traveling clot) or a thrombus (a stationary clot). This condition impairs blood flow, potentially leading to chronic venous insufficiency, pain, and swelling in the lower leg.

Apply this code when documentation explicitly states a chronic embolism or thrombosis affecting the left tibial vein. This diagnosis is typically supported by imaging studies such as duplex ultrasound or venography confirming the presence and chronicity of the occlusion.

• Differentiate between acute and chronic conditions; this code is specific to chronic presentations.
• Ensure laterality (left) is clearly documented.
• Do not use this code for superficial thrombophlebitis; it is specific to deep veins.