Chronic embolism and thrombosis of other specified veins

This code describes the persistent presence of a blood clot (thrombus) or an embolus (a detached mass, often a clot) within a vein that is not otherwise specified as a deep vein of the lower extremity, pulmonary, or cerebral. It signifies a long-standing or recurrent venous obstruction in various other venous locations throughout the body.

Use this code when documentation clearly indicates a chronic or recurrent venous embolism or thrombosis in veins such as the renal vein, hepatic vein, mesenteric vein, or other peripheral veins not covered by more specific codes. Supporting documentation should specify the chronic nature and the affected vein, if known, or indicate "other specified vein."

• Ensure the documentation specifies "chronic" or "recurrent" to differentiate from acute events.
• Avoid using this code if a more specific code exists for the anatomical location (e.g., I82.4- for deep veins of lower extremity, I26.- for pulmonary embolism).
• Always review the medical record for the specific vein involved; if identified, check for a more precise code within the I82.8- subcategory or other relevant chapters.