ICD-10 Code I87.032 – Postthrombotic syndrome with ulcer and inflammation of left lower extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I87.032 – Postthrombotic syndrome with ulcer and inflammation of left lower extremity
What it is
I87.032 identifies postthrombotic syndrome affecting the left lower extremity, with both ulceration and inflammation. Use it when chronic venous damage after prior thrombosis is documented and the left leg is specifically involved.
Clinical signs
Typical findings include chronic leg swelling, skin discoloration, venous stasis changes, ulceration, and local inflammation. Clinical features vary; refer to documentation for evidence of prior thrombosis and left-sided involvement.
When to use this code
Use this code when the record clearly states postthrombotic syndrome with an ulcer and inflammation in the left lower extremity. It fits chronic sequelae of deep vein thrombosis when the provider links the ulcer and inflammatory changes to that condition.
Do not assign it for a simple venous ulcer, cellulitis, or edema without documented postthrombotic syndrome. If laterality or the presence of ulcer or inflammation is unclear, check documentation before coding.
Do not use for
Do not use this code for postthrombotic syndrome without ulceration or without inflammation. Also avoid it when the condition is on the right leg, bilateral, or not specified; check documentation.
Coding tip
Verify all three elements—postthrombotic syndrome, ulcer, and inflammation—plus left-sided location before assigning I87.032.