33505 is associated with a tunnel-based repair approach. Report 33507 when the operative documentation supports an intramural coronary course and its correction.
On this page
CMS RVU26D · Effective 2026-10-01
33507 Coronary repair Medicare reimbursement rates in Rhode Island
Surgical correction of an anomalous coronary artery with an intramural course, reported when the operative findings and repair support that anatomy. Compare 33507 office and facility rates across CMS payment localities in Rhode Island.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 33507 in Rhode Island?
Rhode Island has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$1605.82
1 of 1 localities have a supported rate.
Payment area: Rhode Island
One mapped payment locality.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Cardiac surgery
About 33507: Intramural anomalous coronary artery repair
Surgical correction of an anomalous coronary artery with an intramural course, reported when the operative findings and repair support that anatomy.
Code 33507 describes operative correction of an anomalous coronary artery when part of the vessel runs within the aortic wall. A cardiac surgeon typically exposes the coronary origin through an aortotomy and opens the shared wall to establish a more direct coronary channel. The operation is generally performed in a hospital operating room for congenital coronary anatomy that may be investigated because of symptoms, ischemia, or other risk findings.
Choose the code based on the documented intramural course and repair performed, not solely on the diagnosis of an anomalous coronary origin. The operative report should identify the affected artery, its course, and the corrective work. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in one session, the highest-valued procedure is paid in full and the others are subject to the standard multiple-procedure reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment may be made; co-surgeon payment requires supporting documentation, and team surgery is not permitted.
CMS billing rules for 33507
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery may be paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU30.62 · 64%
- Practice expense (office) RVU9.67 · 20%
- Malpractice RVU7.72 · 16%
155
Medicare services in 2024 · #4537 by national volume
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.
33507 compared with similar codes
Office rates for Rhode Island, from the same CMS release.
33506 is associated with coronary artery translocation. Use 33507 when the defining documented anatomy is an intramural course and that segment is repaired.
33500 addresses repair of a coronary arteriovenous fistula, a connection between vessels. Code 33507 concerns correction of an anomalous coronary artery with an intramural course.
Compare 33507 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Rhode Island →
Office / nonfacility
Unavailable
Facility
$1605.82
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 33507 in Rhode Island.
PPRRVU2026_Oct_nonQPP.csv
3,979
- Code
- 33507
- Physician work
- 30.62
- Practice expense
- 9.67
- Malpractice
- 7.72
GPCI2026.csv
92
- Locality
- Rhode Island
- Physician work
- 1.019
- Practice expense
- 1.033
- Malpractice
- 0.892
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 30.62 | × 1.019 | 31.2018 |
| Practice expense | 9.67 | × 1.033 | 9.9891 |
| Malpractice | 7.72 | × 0.892 | 6.8862 |
| Total RVUs | 48.0771 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Rhode Island$1605.82
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 30.62 | 1.019 |
| Practice expense | 9.67 | 1.033 |
| Malpractice | 7.72 | 0.892 |
(30.62 × 1.019 + 9.67 × 1.033 + 7.72 × 0.892) × $33.4009 = $1605.82
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
33507 billing questions
What distinguishes 33507 from other anomalous coronary artery repairs?
The defining feature is a documented intramural course, with the repair directed at that segment. Other repair approaches are selected according to the anatomy and operation performed.
Can modifier 50 be used for repair of both coronary arteries?
No. CMS identifies bilateral adjustment as inappropriate for this code.
How does the 90-day global period affect postoperative billing?
The day-before preoperative visit and 90 days of related postoperative care are included in the global period.
Can an assistant surgeon or co-surgeon be reported?
Assistant-at-surgery payment may be made. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
How is 33507 affected when other procedures are performed in the same session?
The highest-valued procedure is paid in full, and the other procedures are subject to the standard multiple-procedure reduction.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
