GPHCPCS Level II

Services delivered under an outpatient physical therapy plan of care

Usage notes
Append to a service delivered under an outpatient physical therapy plan of care.
Common mistakes
Applying GP to a service that was actually part of an OT or SLP plan of care rather than a PT plan of care.

Related modifiers

Frequently asked questions

What does modifier GP mean?

Services delivered under an outpatient physical therapy plan of care

When do I use modifier GP?

Append to a service delivered under an outpatient physical therapy plan of care.

What's a common mistake with modifier GP?

Applying GP to a service that was actually part of an OT or SLP plan of care rather than a PT plan of care.

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.