Look Twice At Your Bilateral Modifiers Medical billing bilateral modifiers give billers much headache. Not only are bilateral modifier procedures for medical billing complicated, but they are different for each insurance company. Medical billers must check and double check bilateral modifiers in order to receive payment. It’s true, many payers will not pay claims unless they are in the format in which they require them to be. Unfortunately, each and every payer can have a different medical billing requirement for each and every procedure. Bilateral modifiers are some of the most complicated subjects for medical billers. Modifier 50 is a bilateral modifier. For example, if someone gets eye surgery on …