<prompt> Elderly male has 0.5 mm dilated toous vein in the posterior pa of right calf. What is stage as per CEAP classification?C0C1C2C3  <response>: CEAP classification system: Used for chronic venous disorders Clinical- etiology- Anatomy- Pathophysiology CLINICAL C OF CEAP CLASSIFICATION C0-6 Any limb with possible chronic venous disease is first placed into one seven clinical classes C0-6, according to the objective signs of disease. Class Features 0 No visible or palpable sign of venous disease 1 Telangiectasia, reticular veins, malleolar flare 2 Varicose veins 3 Edema without skin changes 4 Skin changes ascribed to venous disease e.g., pigmentation, venous eczema, lipodermatosclerosis 5 Skin changes as defined above with healed ulceration 6 Skin changes as defined above with active ulceration 