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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 covered indications include: 
 
    Invasive procedures will be considered medically reasonable and necessary if the patient meets the criteria as 
outlined in this LCD, and the intervention is addressed and supported in the plan of care, for a 90 day episode 
of care, that includes a specific treatment plan determined by the assessment and evaluation of the lower 
extremity venous incompetence. 
    Invasive procedures for the treatment of varicose veins are considered medically reasonable and necessary 
when ALL of the following criteria have been met: 
        An evaluation of the patient has been performed including a history and physical examination, the CEAP 
clinical classification and the revised Venous Clinical Severity Score (VCSS), AND 
        A duplex scan of the deep and superficial venous systems supports the examination findings,3 AND 
        A duplex scan confirms the presence of reversed venous flow (reflux) with provocative maneuvers in the 
saphenous, or perforator veins is 500 milliseconds or greater3 and absence of deep venous obstruction, AND 
        The documentation supports signs and/or symptoms that interfere with activities of daily living and/or 
quality of life, AND 
        The CEAP clinical classification is C1 to C6 with the following criteria: 
            Treatment of C1 disease (telangiectasia and their feeding reticular veins) is considered medically 
reasonable and necessary for patients with spontaneous and/or traumatic venous hemorrhage. 
            For patients with C2 or C3 disease and VCSS <6, the plan of care shall include documentation of a 
period of conservative therapy (2 to 4 weeks) including graduated compression 20-30 mmHg or greater, 
ambulation, elevation, and avoiding prolonged sitting and standing. 
            For patients who meet any one of the following criteria, the mandatory conservative therapy prior to the 
invasive procedure may be waived. 
                VCSS =6 
                C4-C6 disease (skin changes assigned to venous disease, healed venous leg ulceration, and active 
venous leg ulceration) 
                Hemorrhage 
                Recurrent superficial thrombophlebitis 
    Incompetent perforator vein (IPV) management by foam sclerotherapy or thermal ablation, will be considered medically reasonable and necessary when: 
        An active venous ulcer is in close proximity to the IPV, OR 
        The proximal significant reflux has been treated and an IPV persists under or adjacent to a healed venous 
ulcer, OR 
        The proximal and regional venous reflux has been treated and there is persisting focal pain and tenderness 
or stasis dermatitis overlying an IPV, OR 
        The incompetent perforator demonstrates reflux >500 ms and diameter > 3.5 mm. 
    Ultrasound guided foam sclerotherapy (UGFS), physician-compounded foam (PCF) and non-compounded 
foam (NCF) will be considered medically reasonable and necessary for ablation of incompetent saphenous 
veins and tributary veins for the treatment of patients with symptomatic CEAP clinical classification C2 to C6 
disease. UGFS is also considered medically reasonable and necessary for ablation of venous malformations. 
    Liquid sclerotherapy will be considered medically reasonable and necessary for ablation of incompetent 
saphenous veins and tributary veins for the treatment of patients with symptomatic CEAP clinical classification 
C2 to C6 disease. Liquid sclerotherapy is also considered medically reasonable and necessary for the treatment 
of patients with symptomatic CEAP clinical classification C1 (telangiectasia and their feeding reticular veins) 
with spontaneous and/or traumatic venous hemorrhage. 
    Thermal ablation (radiofrequency or laser) will be considered medically reasonable and necessary for 
ablation of incompetent saphenous veins for the treatment of patients with symptomatic CEAP clinical 
classification C2 to C6 disease. 
    Chemical adhesives will be considered medically reasonable and necessary for ablation of incompetent 
saphenous veins for the treatment of patients with symptomatic CEAP clinical classification C2 to C6 disease. 
    Mechanochemical ablation (MOCA) will be considered medically reasonable and necessary for ablation of 
incompetent saphenous veins for the treatment of patients with symptomatic CEAP clinical classification C2 to 
C6 disease. 
    It is the responsibility of the provider to comply with all applicable State and Federal laws related to the 
human use of agents. 
    Surgery will be considered medically reasonable and necessary for treatment of incompetent saphenous 
veins for patients with symptomatic CEAP clinical classification C2 to C6 disease. 
    Phlebectomy will be considered medically reasonable and necessary for symptomatic bulbous varicosities 
greater than 3mm diameter above and below the knees. If saphenous vein ablation is performed, phlebectomy 
may be staged or concomitant depending upon the vein pattern and/or provider preferences. 
 
You can find this information in the Local Coverage Determination (LCD) Treatment of Chronic Venous 
Insufficiency of the Lower Extremities L34924. 
 
If you want to read these Medicare rules, you can go to this website www.medicareappeal.com.