Clinical class in the 2020 update of the CEAP classification
| C class | Description |
|---|---|
| C0 | No visible or palpable signs of venous disease |
| C1 | Telangiectasias or reticular veins |
| C2 | Varicose veins |
| C2r | Recurrent varicose veins |
| C3 | Edema |
| C4 | Changes in skin and subcutaneous tissue secondary to chronic venous disease |
| C4a | Pigmentation or eczema |
| C4b | Lipodermatosclerosis or atrophie blanche |
| C4c | Corona phlebectatica |
| C5 | Healed ulcer |
| C6 | Active venous ulcer |
| C6r | Recurrent active venous ulcer |