CPT CodeDescriptionTimed?Column 2 y = use 59 modifier n = do not bill the code in combination with code in column 1 97032Electrical Stimulation, ManualY96523n; 97164y; 97168y 97033IontophoresisY96523n; 97164y; 97168y 97034Contrast BathY96523n; 97164y; 97168y ...