GCHCPCS Level II
This service has been performed in part by a resident under the direction of a
- Usage notes
- Append when a resident, under the direction of a teaching physician, performed part of a service that the teaching physician also personally performed the key portion of.
- Common mistakes
- Using GC without the teaching physician's documented personal involvement in the key portion of the service, which is required to support the modifier.
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 GC mean?
This service has been performed in part by a resident under the direction of a
When do I use modifier GC?
Append when a resident, under the direction of a teaching physician, performed part of a service that the teaching physician also personally performed the key portion of.
What's a common mistake with modifier GC?
Using GC without the teaching physician's documented personal involvement in the key portion of the service, which is required to support the modifier.
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.