Billing code 57307: Fistula repairMedicare rate & RVUs in Utah
Reports closure of a rectovaginal fistula with colostomy, combining repair of the abnormal connection and fecal diversion in one operative service.
CMS doesn’t publish an office rate for 57307 in Utah.
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 57307 covers
This operation closes an abnormal connection between the rectum and vagina and includes creation of a colostomy to divert stool. The repair may use a vaginal or abdominal approach. It is performed in an operating room, typically by a surgeon experienced in pelvic or colorectal surgery, for patients whose fistula requires operative closure with diversion.
Report 57307 for the combined repair and colostomy, rather than treating the included diversion as a separate colostomy service. The operative report should identify the fistula, describe the repair and approach, and document the colostomy. The code has 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 the others are subject to the standard 50% multiple-procedure reduction. Modifier 50 is not appropriate for this service. Assistant-at-surgery payment may be available; co-surgeon payment requires supporting documentation. 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.
57307 in Utah
| Payment locality | Office | Facility |
|---|---|---|
| Utah | Unavailable | $968.62 |
How the 57307 rate is calculated
Each of 57307’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 · 57307
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 16.74Practice expense 10.74Malpractice 2.41
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 57307
57307 has a 90-day global period: related visits in that window are included in the surgery payment.
CMS payment indicators · 57307
Fistula repair
| 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) | 1 | Permitted with supporting documentation. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
| Split (54/55/56) | 0.12/0.74/0.14 | Share of the payment for pre-op, the procedure itself, and post-op care. |
Global surgery period · 57307
Fistula repair
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
57307 without 51 · national facility
$998.35
Fistula repair
57307-51 · Second procedure: 50%
$499.18
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%).
57307 compared with similar codes
Compare codes
57307 vs 57300 vs 57305 vs 57308: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 57300Fistula repair
- 57300 describes rectovaginal fistula closure by vaginal approach without the colostomy included in 57307. Choose 57307 when repair and colostomy are performed together.
- 57305Fistula repair
- 57305 describes rectovaginal fistula closure by abdominal approach without the colostomy included in 57307. The colostomy is the key distinction for 57307.
- 57308Fistula repair
- 57308 identifies a transperineal approach to rectovaginal fistula closure. 57307 is distinguished by the colostomy performed with the repair.
57307 billing questions
When should 57307 be selected instead of 57300 or 57305?
Use 57307 when the rectovaginal fistula repair is performed with a colostomy. Codes 57300 and 57305 describe repair without the colostomy included in 57307.
Can the colostomy be billed separately with 57307?
The colostomy is part of the combined service represented by 57307. Do not separately report a colostomy code for that included work.
What documentation supports reporting 57307?
Document the rectovaginal fistula, the closure performed, the operative approach, and creation of the colostomy.
Does modifier 50 apply to this repair?
No. Modifier 50 is not appropriate for this single fistula repair with colostomy.
What postoperative care is included?
The 90-day global period includes the day-before preoperative visit and related postoperative care for the repair and colostomy.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full; other procedures in the same session are subject to the standard 50% 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 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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