Billing code 92974: Coronary brachytherapyMedicare rate & RVUs in Guam
Reports catheter-based delivery of intracoronary radiation to a coronary segment with in-stent restenosis during a related coronary intervention.
CMS doesn’t publish an office rate for 92974 in Guam.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
On this page 9 sections
What 92974 covers
An interventional cardiologist uses a catheter-based radiation delivery system to treat a coronary artery segment narrowed again inside a previously placed stent. The system is positioned in the treated segment under imaging guidance, and radiation is delivered to limit recurrent tissue growth. This uncommon service is typically performed in a hospital cardiac catheterization laboratory as part of coronary intervention for in-stent restenosis.
Report 92974 as an add-on with the primary procedure performed to treat the restenotic lesion; it is not a stand-alone service. Documentation should identify the previously stented coronary segment, the restenosis, the radiation delivery performed, and the related primary intervention. CMS pays this add-on within the primary procedure's global period. The record should support the distinct intracoronary radiation treatment in addition to the intervention used to prepare or treat the lesion.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
92974 in Hawaii, Guam
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam | Unavailable | $131.71 |
How the 92974 rate is calculated
Each of 92974’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 92974
RVUs × geographic indexes × conversion factor
Work2.93
2.93 RVUs× 1.000 GPCI
Practice expense0.55
0.55 RVUs× 1.000 GPCI
Malpractice0.67
0.67 RVUs× 1.000 GPCI
Adjusted RVUs
4.1500
Conversion factor
$33.4009
Medicare rate
$138.61
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 92974
The CMS indicators that decide how 92974 is paid alongside other services.
CMS payment indicators · 92974
Coronary brachytherapy
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
92974 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 92920Coronary angioplasty
- 92920 reports balloon angioplasty of a coronary artery. 92974 is the additional intracoronary radiation treatment for in-stent restenosis, not the balloon treatment itself.
- 92924Coronary atherectomy
- 92924 reports coronary atherectomy. Use 92974 for intracoronary radiation delivery when treating restenosis within a prior stent; atherectomy alone is not radiation therapy.
- 92978Endoluminl ivus oct c 1st
- 92978 reports intravascular ultrasound or optical coherence tomography imaging. It does not represent delivery of intracoronary radiation.
- 92972Coronary lithotripsy
- 92972 reports coronary intravascular lithotripsy for calcified lesions. 92974 is for intracoronary radiation treatment of in-stent restenosis.
92974 billing questions
Can 92974 be reported by itself?
No. CMS identifies it as an add-on, so it must be billed with a related primary procedure performed for the coronary lesion.
How is 92974 different from coronary angioplasty?
Angioplasty opens the narrowed segment with a balloon. 92974 represents the additional catheter-based intracoronary radiation treatment for in-stent restenosis.
What should the record support?
Document the coronary segment with prior stent and restenosis, the radiation delivery system placement and treatment, and the primary coronary intervention performed.
Is imaging guidance included in 92974?
The intracoronary radiation delivery service includes the guidance associated with positioning and treating the target segment. Separately reportable imaging requires support as a distinct service.
How does the add-on global-period rule affect payment?
CMS pays 92974 within the global period of its primary procedure. The add-on must accompany that primary service rather than be submitted alone.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file lines behind this rate
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