RT HCPCS Level II modifier: Right side (used to identify procedures performed on the right side of the body)
RT is a HCPCS Level II modifier: “Right side (used to identify procedures performed on the right side of the body).” It adds this detail to the code it is reported with.
Official description
RTRight side (used to identify procedures performed on the right side of the body)
Short description: Right side
HCPCS · United States
Medicare details
The indicators CMS publishes with RT in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 1984
Where RT sits
- 1GroupHCPCS modifiers
- 2Modifier RTRight side (used to identify procedures performed on the right side of the body)
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code RT mean?
RT is the HCPCS code for “Right side (used to identify procedures performed on the right side of the body)” in CMS’s HCPCS Level II October 2026 release.
Where is RT in the HCPCS Level II list?
RT is listed under Modifiers.
Does Medicare cover RT?
CMS lists RT’s Medicare coverage as “Carrier judgment”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside RT
All modifiersRBReplacement of a part of a dme, orthotic or prosthetic item furnished as part of a repairRCRight coronary arteryRDDrug provided to beneficiary, but not administered "incident-to"REFurnished in full compliance with fda-mandated risk evaluation and mitigation strategy (rems)RIRamus intermedius coronary arteryRRRental (use the 'rr' modifier when dme is to be rented)SANurse practitioner rendering service in collaboration with a physicianSBNurse midwifeSCMedically necessary service or supplySDServices provided by registered nurse with specialized, highly technical home infusion trainingSEState and/or federally-funded programs/servicesSFSecond opinion ordered by a professional review organization (pro) per section 9401, p.l. 99-272 (100% reimbursement - no medicare deductible or coinsurance)