ICD-10 Code I83 – Varicose veins of lower extremities (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I83 – Varicose veins of lower extremities
What it is
I83 identifies varicose veins affecting the lower extremities. Use it for dilated, tortuous superficial leg veins documented as varicose veins.
Clinical signs
Typical findings include visibly enlarged, twisted veins in the legs, often with aching, heaviness, or swelling. Clinical features vary; refer to documentation.
When to use this code
Use I83 when the provider documents varicose veins of the legs without a more specific subtype. It also fits routine follow-up or assessment notes that clearly identify lower-extremity varicosities. Check documentation if laterality, complications, or a more detailed code is available.
Do not use for
Do not use this code for spider veins, deep vein thrombosis, or venous insufficiency unless varicose veins are specifically documented. Check documentation for the correct venous disorder.
Coding tip
Look for laterality and any complications, because a more specific I83 code may apply.