CPT code 34710: Graft extension2026 Medicare rate & RVUs in Massachusetts
Reports delayed placement of an endovascular graft extension after prior infrarenal aortic or iliac repair, for the first treated vessel.
CMS doesn’t publish an office rate for 34710 in Massachusetts.
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 34710 covers
This service covers a later procedure to place an extension prosthesis after endovascular repair of the infrarenal aorta or an iliac artery. The extension may address a seal problem or endoleak after the original repair. The vascular surgeon uses imaging to assess the target zone, measure the vessel, and guide placement; the code includes associated radiological supervision and interpretation. It is reported for the initial vessel treated in the delayed procedure, not for extension placement performed as part of the original repair.
The operative report should identify the prior endovascular repair, the reason for the delayed extension, the vessel treated, and the imaging and placement performed. Report 34711 for each additional vessel treated. CMS assigns a 90-day global period, including the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and others at 50%. Assistant-at-surgery payment may be made, and co-surgeons are permitted; team surgery is not permitted. The code is not adjusted bilaterally, and modifier 50 is inappropriate.
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 34710 pays more and less in Massachusetts
| Payment locality | Office | Facility |
|---|---|---|
| Metropolitan Boston | Unavailable | $750.79 |
| Rest Of Massachusetts | Unavailable | $711.46 |
How the 34710 rate is calculated
Each of 34710’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 · 34710
RVUs × geographic indexes × conversion factor
Work14.63
14.63 RVUs× 1.000 GPCI
Practice expense3.35
3.35 RVUs× 1.000 GPCI
Malpractice3.65
3.65 RVUs× 1.000 GPCI
Adjusted RVUs
21.6300
Conversion factor
$33.4009
Medicare rate
$722.46
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 34710
34710 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 34710
Graft extension
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 090 | Major surgery: the day before, the day of, and 90 days after are included. |
| Multiple procedures | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 2 | Paid. |
| Co-surgeons (62) | 2 | Permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.09/0.84/0.07 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 34710
Graft extension
90-day global period ends
Dec 30, 2026
Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).
Visit on Oct 31, 2026
Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.
Pre-op dayGlobal period
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
34710 without 51 · national facility
$722.46
Graft extension
34710-51 · Second procedure: 50%
$361.23
When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).
34710 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 34709Endograft extension
- Use 34709 for extension placement performed during the original endovascular repair. Use 34710 when the extension is placed in a later procedure after a prior repair.
- 34711Endograft extension
- 34710 covers the initial vessel in the delayed procedure; 34711 is the add-on for each additional vessel treated.
- 34701Aortic endograft repair
- 34701 reports initial endovascular repair of the infrarenal aorta without graft placement. It does not describe a later extension procedure.
- 34705Aortic endograft repair
- 34705 reports initial infrarenal aortic repair with an aorto-bi-iliac graft; 34710 is for delayed extension placement following a prior repair.
34710 billing questions
How does 34710 differ from 34709?
34710 is for delayed extension placement after a prior endovascular repair. 34709 describes extension placement performed in conjunction with the endovascular repair.
When is 34711 reported with 34710?
Report 34710 for the initial vessel and 34711 for each additional vessel treated during the delayed extension procedure.
Are imaging and radiological interpretation separately reported?
The code includes associated radiological supervision and interpretation, target-zone assessment, vessel measurement, and imaging guidance when performed.
Does modifier 50 apply when extensions are placed on both sides?
No. CMS identifies bilateral adjustment as inappropriate for this code; use the initial-vessel and additional-vessel coding structure when applicable.
What documentation supports delayed placement?
Document the prior endovascular repair, the clinical reason for the later extension, the vessel treated, and the imaging assessment and graft placement performed.
What does the 90-day global period include?
It includes the day-before preoperative visit and 90 days of related postoperative care.
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
Fee sheets
Put 34710 and the rest of your codes on one sheet
Build a fee sheet from your own code list at your locality, put your payer contracts beside Medicare, and see what changed each quarter.
Build my fee sheetOr price your code list free →