G1

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating most recent urea reduction ratio (URR) reading of less than 60.

G2

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating most recent urea reduction ratio (URR) reading of 60 to 64.9.

G3

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating most recent urea reduction ratio (URR) reading of 65 to 69.9.

G4

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating most recent urea reduction ratio (URR) reading of 70 to 74.9.

G5

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating most recent urea reduction ratio (URR) reading of 75 or greater.

G6

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating end-stage renal disease (ESRD) patient for whom less than six dialysis sessions have been provided in a month.

G7

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating pregnancy resulted from rape or incest or pregnancy certified by physician as life threatening. Payment limits do not apply.

G8

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating monitored anesthesia care (MAC) for deep complex, complicated, or markedly invasive surgical procedure.

G9

HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating monitored anesthesia care (MAC) for patient who has history of severe cardio-pulmonary condition.

GA

1. HCPCS Level II modifier that may be used with CPT or HCPCS Level II codes indicating a waiver of liability statement (advanced beneficiary notice) signed by the patient is on file. 2. Abbreviation for general agent. See general agent (GA) .