ICD-10 Code I83.1 – Varicose veins of lower extremities with inflammation (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I83.1 – Varicose veins of lower extremities with inflammation
What it is
This code identifies varicose veins in the lower extremities when inflammation is documented. It describes swollen, twisted leg veins with an inflammatory component, not uncomplicated varicose veins.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include visible varicose veins with localized tenderness, redness, swelling, or inflammation in one or both legs.
When to use this code
Use I83.1 when the provider documents varicose veins of the lower extremity with inflammation. It is appropriate when the note links inflammation directly to the varicose veins, rather than to another leg condition. Check documentation if the laterality or complication is unclear.
Do not use for
Do not use this code for uncomplicated varicose veins without inflammation. Also avoid it when the record describes a different venous disorder or inflammation from another cause.
Coding tip
Code only when inflammation is explicitly documented; otherwise, choose the more specific varicose vein code supported by the chart.