GYHCPCS Level II
Item or service statutorily excluded, does not meet the definition of any
- Usage notes
- Append to a service that is statutorily excluded from the benefit or doesn't meet the definition of a covered service, to get an official denial for secondary billing.
- Common mistakes
- Using GY when a service might actually be covered under different circumstances — GY signals a certain, not a possible, exclusion.
Related modifiers
G0Telehealth services for diagnosis, evaluation, or treatment, of symptoms of anG1Most recent urr reading of less than 60G2Most recent urr reading of 60 to 64.9G3Most recent urr reading of 65 to 69.9G4Most recent urr reading of 70 to 74.9G5Most recent urr reading of 75 or greaterG6Esrd patient for whom less than six dialysis sessions have been provided in aG7Pregnancy resulted from rape or incest or pregnancy certified by physician as
Frequently asked questions
What does modifier GY mean?
Item or service statutorily excluded, does not meet the definition of any
When do I use modifier GY?
Append to a service that is statutorily excluded from the benefit or doesn't meet the definition of a covered service, to get an official denial for secondary billing.
What's a common mistake with modifier GY?
Using GY when a service might actually be covered under different circumstances — GY signals a certain, not a possible, exclusion.
HCPCS modifier data from CMS. CPT® is a registered trademark of the American Medical Association — CPT modifier descriptions are not included on this site. Always verify codes with authoritative sources before making billing decisions.