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.

GN

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating services delivered under an outpatient speech language pathology plan of care.

GO

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating services delivered under an outpatient occupational therapy plan of care.

GP

1. HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating services delivered under an outpatient physical therapy plan of care. 2. Abbreviation for general practitioner. See general practitioner (GP) .

GQ

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating service provided using an asynchronous telecommunications system.

GT

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating services provided by using interactive audio and video telecommunication systems.

GV

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating attending physician was not employed or paid under arrangement by the patient’s hospice provider.

GW

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating service was unrelated to the hospice patient’s terminal condition. Append this modifier when medically necessary services are not part of the patient’s hospice care.