Modifier GY


Item or service statutorily excluded, does not meet the definition of any Medicare benefit.

Correct Use

  • Append when services are provided under statutory exclusion from Medicare Program; claim will deny if modifier is present on claim or not
  • It is not necessary to provide patient with an ABN for these situations
  • Situations excluded based on a section of the Social Security Act
  • Non-covered ambulance mileage reported on HCPCS A0888
  • Append to cause claim to deny with patient liable for charges

Incorrect Use

  • Appending to bundled procedures
  • Appending to add-on codes



Last Updated Oct 31 , 2022