Clinical classification | |
C0 | No visible or palpable signs of venous disease |
C1 | Telangiectasias, 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 |
C6 | Active venous ulcer |
C6r | Recurrent active venous ulcer |
S | With symptoms attributable to venous disease |
A | Absence of symptoms attributable to venous disease |
Etiology classification | |
Ep | Primary |
Es | Secondary |
Esi | Secondary (intravenous) |
Ese | Secondary (extravenous) |
Ec | Congenital |
En | No cause identified |
Anatomy classification* | |
As | Superficial veins (Tel, Ret, GSVa, GSVb, SSV, AASV, NSV) |
Ad | Deep veins (IVC, CIV, IIV, EIV, PELV, CFV, DFV, FV, POPV, TIBV, PRV, ATV, PTV, MUSV, GAV, SOV) |
Ap | Perforator veins (TPV, CPV) |
An | No venous anatomic location identified |
Pathophysiology classification* | |
Pr | Reflux |
Po | Obstruction |
Pr,o | Reflux and obstruction |
Pn | No venous pathophysiology identifiable |
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