I'm from Wiscosin and our practice has come across a bundling issue. The insurance companies are bundling injections, venipunctures, x-rays done on the same day unless the 25 modifier is applied to the E/M code. My understanding of the 25 modifier is that if you do a "proceedure" on the same day the 25 modifier must used on the visit if separatly identifiable service or decision made at visit for minor proceedure. Your input on this would be greatly appreciated.