ICD-10 Code I82.432 – Acute embolism and thrombosis of left popliteal vein (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.432 – Acute embolism and thrombosis of left popliteal vein
What it is
This code identifies a new blood clot or embolus in the left popliteal vein, the deep vein behind the knee. Use it when documentation states the event is acute and limited to that vessel.
Clinical signs
Typical findings include unilateral leg pain, swelling, warmth, and tenderness, often with calf or behind-knee discomfort. Clinical features vary; refer to documentation, and confirm the clot involves the left popliteal vein.
When to use this code
Use I82.432 when the provider documents acute thrombosis or embolism of the left popliteal vein, including confirmed deep vein thrombosis in that location. Apply it when imaging, assessment, or discharge diagnosis clearly supports the left-sided popliteal site. If laterality or acuity is unclear, check documentation before coding.
Do not use for
Do not use this code for chronic, unspecified, or right-sided popliteal vein thrombosis. It is also inappropriate if the clot is in a different vein or the record does not specify acute involvement.
Coding tip
Verify both acuity and laterality in the provider record before assigning I82.432.