Medicare Claims Processing Manual (Pub. 100-04), Ch. 4 § 20.6.19
Modifier CG
20.6.19 - Modifier CG
(Rev. 11937; Issued: 03-31-23; Effective: 04-01-23; Implementation: 04-03-23)
CG: Policy criteria applied
Effective January 1, 2019, modifier CG can be reported with certain device-intensive
procedures to reflect situations in which a device was not used during the device-
intensive procedure. Refer to section 61.2.1 of this manual for further information on
modifier CG.
This modifier would be reported on the UB–04 form (CMS Form 1450) for hospital
outpatient device- intensive procedures. Reporting of this modifier is not required for
Critical access hospitals (CAHs). While this modifier is required, it does not have an
effect on payment.