Chronic embolism and thrombosis of right iliac vein

This diagnosis code signifies the presence of a long-standing blood clot or embolic material within the right iliac vein. This condition is chronic, indicating it has persisted over an extended period, potentially leading to symptoms such as chronic leg swelling, pain, or venous insufficiency in the right lower extremity.

Use this code when documentation clearly states a chronic (not acute) embolism or thrombosis affecting the right iliac vein. This is typically supported by imaging studies (e.g., venography, duplex ultrasound) confirming the presence and chronicity of the clot, along with clinical signs and symptoms consistent with chronic venous obstruction.

• Differentiate carefully between acute (I82.221) and chronic (I82.521) conditions; documentation must specify chronicity.
• Ensure the laterality is correctly identified as "right" iliac vein.
• Consider sequencing this code with any associated complications, such as post-thrombotic syndrome (I87.0-), if documented.