Acute embolism and thrombosis of iliac vein, bilateral

This code signifies the sudden blockage of both iliac veins by a blood clot, preventing normal blood flow from the lower extremities. This acute condition can lead to significant pain, swelling, and potential complications if not promptly addressed.

Apply this code when documentation clearly indicates an acute thrombotic or embolic event affecting both the left and right iliac veins. This diagnosis is typically supported by imaging studies such as venography, CT angiography, or ultrasound demonstrating bilateral iliac vein occlusion.

• Ensure documentation specifies "acute" to differentiate from chronic conditions.
• Verify laterality is explicitly stated as "bilateral" in the physician's notes.
• Consider co-reporting with codes for underlying causes (e.g., hypercoagulable states) or associated complications (e.g., pulmonary embolism) when documented.