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The rules say that plans must pay for a medical service or item if regular Medicare would pay for it in this case. 
You can find this rule at 42 Code of Federal Regulations (CFR) Section 422.101. 
 
The rules state that the accepted treatments for eliminating saphenous (great saphenous vein (GSV), anterior 
accessory GSV (AAGSV), small saphenous vein (SSV)) reflux (saphenofemoral or saphenopopliteal) are 
radiofrequency ablation (RFA), laser ablation (EVLA), polidocanol microfoam (PEM), cyanoacrylate 
embolization (CAE) ablation, and mechanochemical ablation (MOCA). Coverage is only for devices with FDA 
approval or clearance consistent with saphenous ablation and used according to its approved instructions for 
use (IFU). 
 
RFA and EVLA are classified as thermal tumescent (TT) techniques; PEM, CAE and MOCA are non-thermal 
non-tumescent (NTNT) techniques. Each endovenous ablation approach has advantages and disadvantages; 
which one is best depends on the unique clinical/anatomical scenario. While saphenous vein ligation and 
stripping remains an important option in selected cases, it has been largely supplanted by endovenous ablation 
therapy as primary treatment of saphenous (axial/truncal) vein incompetence. The treatments to eliminate the 
saphenous vein reflux will be considered medically necessary if the patient remains symptomatic after a six-
week trial of conservative therapy and has reflux in a saphenous vein. 
 
The treatments for symptomatic varicose tributaries are either compressive sclerotherapy or microphlebectomy. 
The treatments of the tributary veins will be considered medically necessary if saphenous reflux is not present 
or already successfully eliminated, the veins are greater than 4 millimeters in diameter and if the patient 
remains symptomatic after a six-week trial of conservative therapy.   
 
The components of the conservative therapy include, but are not limited to: 
     -weight reduction, 
    -a daily exercise plan, 
    -periodic leg elevation, and 
    -the use of graduated compression stockings. 
 
The conservative therapy must be documented in the medical record. Inability to tolerate compressive bandages 
or stockings and the reason for such intolerance must be documented in the medical record. 
 
The patient is considered symptomatic if any of the following signs and symptoms of significantly diseased 
vessels of the lower extremities are documented in the medical record: 
 
    -stasis ulcer of the lower leg, 
    -significant pain and significant edema that interferes with activities of daily living, 
    -bleeding associated with the diseased vessels of the lower extremities, 
    -recurrent episodes of superficial phlebitis, 
    -stasis dermatitis, or 
    -refractory dependent edema. 
 
Coverage of endovenous ablation therapy is limited to patients with:  
 
    -a maximum vein diameter of 12 mm for CAE, PEM and MOCA; and 
    -absence of thrombosis or vein tortuosity, which would impair catheter advancement (except for PEM). 
 
The following interventional treatments are not considered medically reasonable or necessary and are denied as 
such: 
 
    -Surgery, endovenous ablation, or sclerotherapy are typically not performed for varicose veins that develop 
or worsen during pregnancy because most will spontaneously resolve or improve after delivery. 
    -Reinjection following recanalization or failure of vein closure without recurrent signs or symptoms. 
    -Sclerotherapy of the saphenous vein at its junction with the deep system. 
    -Noncompressive sclerotherapy. 
    -Compressive sclerotherapy for large, extensive or truncal varicosities. 
    -Sclerotherapy, ligation and/or stripping of varicose veins, or endovenous ablation therapy are generally not 
covered for patients with severe distal arterial occlusive disease; obliteration of deep venous system; an allergy 
to the sclerosant; or a hypercoaguable state. 
    -Any interventional treatment that uses equipment or sclerosants not approved for such purposes by the 
FDA. 
 
You can find this information in Local Coverage Determination (LCD): Varicose Veins of the Lower 
Extremity, Treatment of (L33575). 
 
If you want to read these Medicare rules, you can go to this website www.medicareappeal.com. 
 
The Plan contract says that the Plan covers items and services in accordance with Medicare rules.