GY Modifier in Medical Billing

The "GY modifier" serves as a flag for Medicare claims, indicating that the service provided is not covered under the Medicare program. It helps healthcare providers communicate to Medicare that certain services are not eligible for reimbursement, often due to specific statutory exclusions or failure to meet the criteria for Medicare benefits. This modifier plays a crucial role in ensuring accurate billing and reimbursement processes, as well as maintaining compliance with Medicare guidelines and regulations.