Billing code 93564: Graft angiographyMedicare rate & RVUs in Nevada
Reports selective contrast imaging of aortocoronary venous bypass grafts during cardiac catheterization, such as graft assessment in a patient with prior CABG.
Medicare pays $52.17 for 93564 in the office in Nevada (Nevada**). Which amount applies depends on the service address.
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 93564 covers
During cardiac catheterization, the cardiologist selectively injects contrast into one or more aortocoronary venous bypass grafts to visualize the grafts and their connections. A common setting is evaluation of graft patency in a patient with prior coronary artery bypass surgery. This is an imaging injection service, not a graft intervention; the catheterization and any treatment are represented by their applicable codes.
Report 93564 only with a primary cardiac catheterization procedure, and only when selective graft opacification is performed. The record should identify the grafts injected and support that selective imaging was carried out and interpreted. This add-on is paid within the primary procedure’s global period. It is not reported as a stand-alone service. When multiple grafts are selectively imaged during the same catheterization, report the add-on for the service rather than treating each graft as a separate unit.
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.
93564 in Nevada**
| Payment locality | Office | Facility |
|---|---|---|
| Nevada** | $52.17 | $46.15 |
How the 93564 rate is calculated
Each of 93564’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 · 93564
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 1.00Practice expense 0.37Malpractice 0.23
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 93564
The CMS indicators that decide how 93564 is paid alongside other services.
CMS payment indicators · 93564
Graft angiography
| 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. |
93564 compared with similar codes
Compare codes
93564 vs 93563 vs 93565 vs 93567: national Medicare rates
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How to choose
- 93563Coronary angiography
- Use 93564 for selective imaging of aortocoronary venous bypass grafts; use 93563 for selective imaging of native coronary arteries.
- 93565Cardiac angiography
- 93565 covers left ventricular or left atrial angiography, not selective imaging of coronary bypass grafts.
- 93567Aortic angiography
- 93567 covers supravalvular aortography. It is not the selective graft injection service represented by 93564.
93564 billing questions
How does 93564 differ from 93563?
93564 captures selective imaging of aortocoronary venous bypass grafts. 93563 is for selective coronary angiography of the native coronary arteries.
Which primary procedure should accompany 93564?
Report it with the applicable cardiac catheterization code, such as 93459 for left heart catheterization with coronary angiography that includes bypass grafts. It is an add-on and cannot stand alone.
Do I report one unit for each graft?
No. The add-on represents selective opacification of one or more aortocoronary venous bypass grafts during the catheterization, rather than a separate unit for every graft.
What documentation supports 93564?
Document the selective graft imaging performed, including which bypass grafts were injected and the resulting imaging interpretation. The record should distinguish graft opacification from imaging of native coronary arteries.
Can 93564 be billed by itself?
No. It must be reported with a primary cardiac catheterization procedure and is paid within that procedure’s global period.
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
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