ICD-10 Code I82.451 – Acute embolism and thrombosis of right peroneal vein (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.451 – Acute embolism and thrombosis of right peroneal vein
What it is
This code identifies a new clot or embolus in the right peroneal vein, a deep vein in the lower leg. Use it when the record specifies the right side and an acute event.
Clinical signs
Clinical features vary; refer to documentation. Typical notes may describe unilateral leg pain, swelling, tenderness, warmth, or a confirmed deep vein thrombosis in the right calf.
When to use this code
Use I82.451 when the provider documents acute embolism or thrombosis involving the right peroneal vein. It fits confirmed deep venous clotting in the right lower leg, including imaging-supported diagnoses. Check documentation if the note does not clearly state acuity or laterality.
Do not use for
Do not use this code for chronic or unspecified venous thrombosis, or when the clot is in a different vein location. If the right side is not documented, check documentation.
Coding tip
Verify both acuity and anatomic site; right peroneal vein and acute status must be documented before assigning I82.451.