ICD-10 Code I82.542 – Chronic embolism and thrombosis of left tibial vein (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.542 – Chronic embolism and thrombosis of left tibial vein
What it is
I82.542 identifies a chronic blood clot or embolus in the left tibial vein. Use it when documentation shows an ongoing or longstanding venous obstruction in that specific lower-leg vein.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records may note persistent leg swelling, discomfort, or prior imaging confirming chronic venous thrombosis in the left tibial vein.
When to use this code
Use this code when the provider documents chronic thrombosis or chronic embolism affecting the left tibial vein. It may also apply when imaging or follow-up notes clearly describe an old, persistent clot in that vein. Do not assume chronicity without explicit documentation.
Do not use for
Do not use this code for acute deep vein thrombosis, superficial vein thrombosis, or clots in a different leg vein. Check documentation if the laterality or chronic status is unclear.
Coding tip
Confirm both chronic status and left-sided tibial vein involvement before assigning I82.542.