Chr emblsm and thombos unsp deep veins of prox low extrm, bi

This code signifies the presence of long-standing blood clots (thrombosis) or emboli within the deep veins of both upper legs, without further specification of the exact deep vein involved. This condition is chronic, indicating it has been present for an extended period, and affects the proximal (upper) portion of both lower extremities.

Apply this code when documentation explicitly states chronic deep vein thrombosis (DVT) or embolism affecting both proximal lower extremities, and the specific deep vein (e.g., femoral, popliteal) is not identified. This is typically used when imaging reports (e.g., duplex ultrasound) confirm bilateral chronic DVT but do not specify the exact vessel.

• Ensure documentation clearly specifies "chronic" and "bilateral" involvement of the proximal lower extremities.
• Avoid using this code if a more specific deep vein (e.g., femoral, popliteal) is documented; instead, use the appropriate specific code.
• Code any associated complications, such as post-thrombotic syndrome, separately.