Hi All Can anyone suggest which is the proper test to begin to rule out Lyme disease if one has medicare? The primary MD just wrote Lyme confirmatory test with cpt code 86617 with Labcorp. Is this enough? I keep reading that ELISA should be done with the western Blot. Which test number is this please? I was looking a Labcorp test menu and it just has Lyme disease IGM ..is this the Elisa test? Also there is a note at bottom of the western blot test sample that says: "Sera from individuals with the following may cross react in the Lyme Western Blot assays: other spirochetal diseases (periodontal disease, leptospirosis, relapsing fever, yaws, and pinta); connective autoimmune (Rheumatoid Arthritis and Systemic Lupus Erythematosus and also individuals with Antinuclear Antibody); other infections (Rocky Mountain Spotted Fever; Epstein−Barr Virus, and Cytomegalovirus)." Now my family member that I am trying to get this test for does have high EBV (>600) and Cytomeglovirus (10) IGG titers. So in this scenario, would it be advisable to do the western blot? Any guidance is appreciated very much!