ICD-10 Code I82.543 – Chronic embolism and thrombosis of tibial vein, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.543 – Chronic embolism and thrombosis of tibial vein, bilateral
What it is
This code identifies a chronic blood clot or embolus affecting both tibial veins in the lower legs. Use it when the record clearly states bilateral tibial vein involvement and the condition is ongoing or chronic.
Clinical signs
Patients may have leg swelling, pain, tenderness, or heaviness, but clinical features vary; refer to documentation. Imaging or vascular studies may confirm chronic thrombosis in the tibial veins.
When to use this code
Use I82.543 when the provider documents chronic embolism and thrombosis specifically in the tibial veins on both sides. It also fits follow-up visits for a known chronic clot when no acute episode is described. Check documentation if laterality or chronicity is unclear.
Do not use for
Do not use this code for acute tibial vein thrombosis, superficial vein thrombosis, or unspecified lower-extremity clotting. If the note does not confirm bilateral tibial vein involvement, check documentation.
Coding tip
Confirm both chronic status and bilateral tibial vein location before assigning I82.543.