G1 G2 G3 G4 G5 G6 G7 G8 G9 Ga Gb Gc Ge Gf Gg Gh Gj Gk Gl Gm Gn Go Gp Gq Gt Gv Gw Gy Gz

GB

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating claim is being resubmitted for payment because it is no longer covered under a global payment demonstration.

GC

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating service has been performed by a resident under the direction of a teaching physician. The teaching physician submits the bill for the service.

GE

1. HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating a service has been performed by a resident without the presence of a teaching physician under the primary care exception. 2. Abbreviation for gastroenterology. See gastroenterology (GE) .

GF

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating nonphysician (nurse practitioner, certified registered nurse anesthetist, certified registered nurse, clinical nurse specialist, physician assistant) services performed in a critical access hospital.

GG

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating performance and payment of a screening mammogram and diagnostic mammogram on the same patient on the same day.

GH

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating a diagnostic mammogram converted from a screening mammogram on the same day.

GJ

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating an opt out physician or practitioner who has given emergency or urgent service to a Medicare patient.

GK

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating the actual item or service ordered by a physician. Item may be associated with GA or GZ modifier.

GL

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating a medically unnecessary upgrade provided instead of standard item, no charge, no Advance Beneficiary Notice (ABN).

GM

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating multiple patients were transported on one ambulance trip. List the total number of patients transported.