Table 1.

CEAP Classification

C Class: Clinical Manifestation

C0: No visible or palpable signs of venous disease

C1: Telangiectasias or reticular veins

C2: Varicose veins, distinguished from reticular veins by a diameter ≥ 3 mm

C3: Edema

C4: Changes in skin and subcutaneous tissue

C4a: Pigmentation or eczema

C4b: Lipodermatosclerosis or atrophie blanche

C5: Healed venous ulcer

C6: Active venous ulcer

Note: Further subdivided with subscript S (symptomatic) or A (asymptomatic)

E Class: Etiologic Factors

Ec: Congenital

Ep: Primary

Es: Secondary (post-thrombotic)

En: No venous cause identified

A Class: Anatomic Distribution

As: Superficial veins

Ap: Perforator veins

Ad: Deep veins

An: No venous location identified

P Class: Pathophysiology

Pr: Reflux

Po: Obstruction

Pr,o: Reflux and obstruction

Pn: No venous pathophysiology identifiable