Modifier GZ

Item or service expected to be denied as not reasonable or necessary (items submitted with GZ are automatically denied and not subject to complex medical review)

Correct Use

  • Use to report an ABN was not issued for a service
  • Use when an ABN may be required but was not obtained
  • Use when an ABN was obtained but is invalid

All claim line(s) items submitted with a GZ modifier shall be denied automatically and will not be subject to complex medical review.


Last Updated Sep 27 , 2022