RI HCPCS Level II modifier: Ramus intermedius coronary artery
RI is a HCPCS Level II modifier: “Ramus intermedius coronary artery.” It adds this detail to the code it is reported with.
Official description
RIRamus intermedius coronary artery
Short description: Ramus intermedius cor artery
HCPCS · United States
Medicare details
The indicators CMS publishes with RI in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Added
- Jan 1, 2013
Where RI sits
- 1GroupHCPCS modifiers
- 2Modifier RIRamus intermedius coronary artery
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 RI mean?
RI is the HCPCS code for “Ramus intermedius coronary artery” in CMS’s HCPCS Level II October 2026 release.
Where is RI in the HCPCS Level II list?
RI is listed under Modifiers.
Does Medicare cover RI?
CMS lists RI’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 RI
All modifiersQZCrna service: without medical direction by a physicianRAReplacement of a dme, orthotic or prosthetic itemRBReplacement 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)RRRental (use the 'rr' modifier when dme is to be rented)RTRight side (used to identify procedures performed on the right side of the body)SANurse practitioner rendering service in collaboration with a physicianSBNurse midwifeSCMedically necessary service or supplySDServices provided by registered nurse with specialized, highly technical home infusion training