Billing code 15758: Fascial flapMedicare rate & RVUs in Delaware
Reports transfer of a free fascial flap with microvascular connection to reconstruct a soft-tissue defect when vascularized fascia is required.
CMS doesn’t publish an office rate for 15758 in Delaware.
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 15758 covers
A surgeon harvests fascia as a free flap, divides its native blood supply, transfers it to a defect, and reconnects its vessels to recipient vessels under microsurgical technique. Plastic and reconstructive surgeons and other surgeons with microsurgical expertise may perform the procedure, commonly in an operating room for reconstruction after trauma, tumor removal, or another defect requiring vascularized fascial tissue. The code distinguishes fascia-only tissue transfer from free flaps that include skin or muscle.
Select this code when the operative record supports transfer of a free fascial flap and microvascular anastomosis; document the tissue transferred, recipient site, and vascular connection. It has a 90-day global period that includes the day-before preoperative visit and related postoperative care during that period. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% multiple-procedure reduction. Bilateral adjustment is not appropriate. Assistant-at-surgery payment may be allowed, co-surgeons are permitted, and team surgery is not permitted.
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.
15758 in Delaware
| Payment locality | Office | Facility |
|---|---|---|
| Delaware | Unavailable | $1,921.36 |
How the 15758 rate is calculated
Each of 15758’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 · 15758
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 35.98Practice expense 16.41Malpractice 5.73
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 15758
15758 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 15758
Fascial flap
| 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) | 0.10/0.71/0.19 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 15758
Fascial flap
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
15758 without 51 · national facility
$1,941.26
Fascial flap
15758-51 · Second procedure: 50%
$970.63
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%).
15758 compared with similar codes
Compare codes
15758 vs 15756 vs 15757 vs 15770 vs 15740: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 15756Free tissue flap
- Choose 15756 when the free flap includes muscle or myocutaneous tissue. Code 15758 describes a free fascial flap.
- 15757Free flap
- Choose 15757 for a free skin flap with microvascular anastomosis; 15758 is for a free fascial flap.
- 15770Composite tissue graft
- 15770 describes a dermis-fat-fascia graft. Use 15758 when the operative service transfers a free fascial flap and reconnects its blood supply microsurgically.
- 15740Island flap
- 15740 describes an island pedicle flap that remains connected through a vascular pedicle. Code 15758 is for free fascial tissue transferred with microvascular reconnection.
15758 billing questions
How is 15758 distinguished from 15756 or 15757?
Use 15758 for a free fascial flap. Codes 15756 and 15757 describe free flaps with muscle or skin, respectively, rather than fascia alone.
What operative details support reporting 15758?
Document the fascial tissue transferred, the defect reconstructed, and the microvascular connection to recipient vessels. The record should establish that this was a free flap, not a graft or a flap that remained attached to its original blood supply.
Can 15758 be reported with another procedure in the same session?
Other procedures may be reported when separately supported. Under the CMS multiple-procedure rule, the highest-valued procedure is paid in full and other procedures performed in the same session are subject to a 50% reduction.
Which surgical-role modifiers may apply?
CMS permits assistant-at-surgery payment and co-surgeons for this code, but does not permit team surgery. Bilateral adjustment does not apply, so modifier 50 is inappropriate.
What care is included in the global period?
The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after 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 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
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