Modifier Focus:
Maneuver Modifier 90 Pitfalls to Bill Referred Lab Tests
Published on Wed Mar 11, 2015
Payer rules call the shots. If you want or need to bill for clinical lab tests that your lab doesn’t self-perform but sends to an outside (reference) lab, just beware that you have a lot of compliance issues to wade through first. You should also get familiar with modifier 90 (Reference [outside] laboratory) if you’re going to do this “third [...]