R Modifiers

RA

Replacement of a dme, orthotic or prosthetic item

RB

Replacement of a part of a dme, orthotic or prosthetic item furnished as part of a repair

RC

Right coronary artery

RD

Drug provided to beneficiary, but not administered "incident-to"

RE

Furnished in full compliance with fda-mandated risk evaluation and mitigation strategy (rems)

RI

Ramus intermedius coronary artery

RR

Rental (use the 'rr' modifier when dme is to be rented)

RT

Right side (used to identify procedures performed on the right side of the body)