ICD-10 Code I82.813 – Embolism and thrombosis of superficial veins of lower extremities, bilateral (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I82.813 – Embolism and thrombosis of superficial veins of lower extremities, bilateral
What it is
This code identifies a blood clot or embolus in the superficial veins of both lower extremities. It refers to superficial venous thrombosis affecting the legs on both sides.
Clinical signs
Typical findings include localized pain, tenderness, redness, warmth, and a palpable cord along a superficial vein. Clinical features vary; refer to documentation.
When to use this code
Use I82.813 when documentation states superficial vein thrombosis or embolism in both legs. Apply it when the provider clearly identifies bilateral involvement and the clot is in superficial, not deep, veins.
If the record says “superficial thrombophlebitis” or similar wording for both lower extremities, this code may fit. Check documentation if the location or laterality is unclear.
Do not use for
Do not use this code for deep vein thrombosis, upper-extremity thrombosis, or unspecified laterality. Do not assign it if the record does not confirm superficial vein involvement.
Coding tip
Verify both laterality and vein type in the note before coding, because superficial and deep venous clots are coded differently.