Not sure when to apply modifier 59? Wondering why you have to use the KX modifier? Let’s face it: modifiers can get pretty confusing. There are a lot of rules to keep straight—and most of them are anything but cut-and-dried. That’s why we focused this month’s webinar on all things modifiers. WebPT founder Heidi Jannenga, PT, teamed up with compliance expert Tom Ambury to host an open forum. They devoted the first half of the webinar to explaining the ins and outs of modifiers, and the second half is a live Q&A.