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.

GIC

See: guaranteed investment contract (GIC) and separate account guaranteed investment contract (GIC) .

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).