No office rate
33880 describes the initial endovascular repair involving coverage of the left subclavian artery origin. This code is for a later proximal extension to a prior repair.
On this page
CMS RVU26D · Effective 2026-10-01
33883 Aortic extension Medicare reimbursement rates in Michigan
Reports later placement of a proximal extension graft to revise a prior endovascular repair of the descending thoracic aorta. Compare 33883 office and facility rates across CMS payment localities in Michigan.
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 33883 in Michigan?
Michigan has 2 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 2 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$968.84–$1065.76
2 of 2 localities have a supported rate.
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.
Endovascular surgery
About 33883: Delayed proximal aortic extension placement
Reports later placement of a proximal extension graft to revise a prior endovascular repair of the descending thoracic aorta.
A vascular or cardiothoracic surgeon uses catheter-based techniques to place a graft extension at the proximal end of a prior endovascular repair of the descending thoracic aorta. This may be needed when the original repair requires a longer proximal seal, such as for a persistent endoleak. The procedure is typically performed in an operating room or hybrid suite with imaging used to guide graft positioning.
Report this service for the delayed proximal extension procedure, rather than for the original thoracic endovascular repair or a distal extension. The operative report should identify the prior repair, the reason for extension, its proximal location, and the work performed. CMS assigns a 90-day global period, including the day-before preoperative visit and related postoperative care. When other procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple-procedure reduction. Assistant-at-surgery payment and co-surgeon billing are permitted; report participating surgeons under the applicable rules rather than as a team surgery.
CMS billing rules for 33883
- 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 permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU19.41 · 67%
- Practice expense (office) RVU4.60 · 16%
- Malpractice RVU4.78 · 17%
359
Medicare services in 2024 · #3828 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.
33883 compared with similar codes
Office rates for Michigan, from the same CMS release.
No office rate
33881 describes the initial endovascular repair without coverage of the left subclavian artery origin. Use this code for the subsequent proximal extension procedure.
No office rate
Both concern delayed extension placement after a prior thoracic endovascular repair. Choose this code for a proximal extension and 33886 for a distal extension.
Compare 33883 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.
2 of 2 payment localities
Detroit →
Office / nonfacility
Unavailable
Facility
$1065.76
Rest Of Michigan →
Office / nonfacility
Unavailable
Facility
$968.84
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33883 billing questions
How is this different from the original thoracic endovascular repair?
This code is for a later procedure that adds a proximal extension to a previous descending thoracic aortic repair. Codes 33880 and 33881 describe initial endovascular repair services.
When should the distal extension code be considered instead?
Use 33886 when the delayed graft extension is placed at the distal end of the prior repair. This code identifies proximal extension placement.
What documentation supports reporting this service?
Document the prior endovascular repair, the reason for the later extension, the proximal graft location, and the procedure performed. The operative report should distinguish the extension from the original repair.
What postoperative care is included in the global period?
The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.
How are other procedures handled when performed in the same session?
CMS pays the highest-valued procedure in full and applies the standard multiple-procedure reduction to the other procedures performed in that session.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment and co-surgeon billing are permitted for this service. Multiple surgeons should be reported under the applicable assistant or co-surgeon rules, not as a team surgery.
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.
4,09933880,,Evasc rpr ta ndgft cov lsa,A,,26.33,5.63,NA,5.63,,6.58,38.54,38.54,0,090,0.09,0.84,0.07,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,10033881,,Evasc rpr ta ndgft xcov lsa,A,,21.97,4.90,NA,4.90,,5.49,32.36,32.36,0,090,0.09,0.84,0.07,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,10133882,,Evasc rpr ta dplmt mltpc sys,A,,35.00,9.71,NA,9.71,,8.07,52.78,52.78,0,090,0.09,0.84,0.07,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,10233883,,Delayed plmt prox xtn prosth,A,,19.41,4.60,NA,4.60,,4.78,28.79,28.79,0,090,0.09,0.84,0.07,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,10333886,,Delayed plmt dstl xtn prosth,A,,19.41,4.51,NA,4.51,,4.84,28.76,28.76,0,090,0.09,0.84,0.07,2,0,2,2,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,1043388F,,Ajcc cln cncr stage 3 docd,I,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
4,10533894,,Evasc st rpr thrc/aa acrs br,A,,17.81,3.32,NA,3.32,,4.26,25.39,25.39,0,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00