CPT code 93564: Graft angiography, aortocoronary venous bypass grafts2026 Medicare rate & RVUs
Reports selective contrast imaging of aortocoronary venous bypass grafts during cardiac catheterization, such as graft assessment in a patient with prior CABG.
Medicare pays $53.44 for 93564 nationally in the office and $47.43 in a hospital or facility. Local office rates run $47.61–$67.50.
Medicare rate · 93564
Graft angiography, aortocoronary venous bypass grafts
- Work RVUs
- 1
- Total RVUs
- 1.60
- Global days
- ZZZ
National rate · 2026
$53.44
Office setting, before claim adjustments.
See every locality for 93564 →Billed by an NP, PA or therapist? →
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 10 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.
Where 93564 pays more and less
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
109 payment localities
$47.61 to $67.50
109 of 109 payment localities
93564 rates by state
Office rate range in each state. Select a state to see its payment localities.
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Local rates. Clear comparisons.
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$47.61
$67.50
Color shows the midpoint of each state’s locality range.
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| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $67.50 | 1 |
| AL | $48.56 | 1 |
| AR | $47.97 | 1 |
| AZ | $51.95 | 1 |
| CA | $51.63–$59.01 | 29 |
| CO | $52.95 | 1 |
| CT | $56.67 | 1 |
| DC | $58.31 | 1 |
| DE | $52.68 | 1 |
| FL | $56.76–$65.69 | 3 |
| GA | $53.58–$55.28 | 2 |
| GU | $51.90 | 1 |
| HI | $51.90 | 1 |
| IA | $47.76 | 1 |
| ID | $48.40 | 1 |
| IL | $56.69–$63.69 | 4 |
| IN | $48.59 | 1 |
| KS | $48.44 | 1 |
| KY | $51.42 | 1 |
| LA | $51.70–$53.76 | 2 |
| MA | $53.07–$56.36 | 2 |
| MD | $53.29–$58.31 | 3 |
| ME | $49.55–$50.50 | 2 |
| MI | $53.36–$58.28 | 2 |
| MN | $48.39 | 1 |
| MO | $51.54–$52.86 | 3 |
| MS | $49.72 | 1 |
| MT | $53.43 | 1 |
| NC | $49.84 | 1 |
| ND | $48.88 | 1 |
| NE | $47.71 | 1 |
| NH | $52.99 | 1 |
| NJ | $56.66–$58.05 | 2 |
| NM | $53.96 | 1 |
| NV | $52.17 | 1 |
| NY | $50.54–$64.50 | 5 |
| OH | $52.43 | 1 |
| OK | $50.41 | 1 |
| OR | $51.11–$53.38 | 2 |
| PA | $52.01–$56.03 | 2 |
| PR | $53.46 | 1 |
| RI | $53.65 | 1 |
| SC | $51.35 | 1 |
| SD | $48.34 | 1 |
| TN | $48.76 | 1 |
| TX | $51.78–$56.51 | 8 |
| UT | $51.92 | 1 |
| VA | $50.97–$58.31 | 2 |
| VI | $53.46 | 1 |
| VT | $49.52 | 1 |
| WA | $52.69–$56.51 | 2 |
| WI | $47.61 | 1 |
| WV | $55.13 | 1 |
| WY | $51.44 | 1 |
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
Work1.00
1.00 RVUs× 1.000 GPCI
Practice expense0.37
0.37 RVUs× 1.000 GPCI
Malpractice0.23
0.23 RVUs× 1.000 GPCI
Adjusted RVUs
1.6000
Conversion factor
$33.4009
Medicare rate
$53.44
Every GPCI starts 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, aortocoronary venous bypass grafts
| 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 · National
4 codes, side by side
How to choose
- 93563Coronary angiographyDuring congenital catheterization
- Use 93564 for selective imaging of aortocoronary venous bypass grafts; use 93563 for selective imaging of native coronary arteries.
- 93565Cardiac angiographyLeft ventricle or atrium
- 93565 covers left ventricular or left atrial angiography, not selective imaging of coronary bypass grafts.
- 93567Aortic angiographySupravalvular injection
- 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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