The clinical class C, of the CEAP classification (Clinical-Etiology-Anatomy-Pathophysiology), is often used when selecting patients for treatment within the national healthcare system. The aim of this study was to test the interobserver reproducibility of C when used in a clinical situation where the decision for reimbursement was made.

An unselected series of 78 patients (106 limbs) with varicose veins were examined by three independent surgeons with regard to C of CEAP and whether there was a medical indication for treatment. Interobserver reproducibility was calculated with kappa statistic.

Total agreement between the three observers for clinical class was obtained in 61% of all cases ( .55–.68 (95% CI)) and for medical indication in 60% of all cases (.35–.57 (95% CI)).

The reproducibility of C when deciding medical indication for treatment is moderate. This may be due to inherent difficulties in the CEAP, lack of specific training, or the simultaneous assessment of reimbursement that may influence the clinical classification.