No office rate
This code concerns excision of suture-bearing bone during craniosynostosis surgery. Code 61550 represents release of a single cranial suture.
On this page
CMS RVU26D · Effective 2026-10-01
61558 Craniosynostosis surgery Medicare reimbursement rates in Minnesota
Reports cranial surgery for craniosynostosis involving excision of fused suture-bearing bone, selected from the documented operative approach and reconstruction. Compare 61558 office and facility rates across CMS payment localities in Minnesota.
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 61558 in Minnesota?
Minnesota 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
$1610.66
1 of 1 localities have a supported rate.
Payment area: Minnesota
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.
Neurosurgery
About 61558: Craniosynostosis suture excision
Reports cranial surgery for craniosynostosis involving excision of fused suture-bearing bone, selected from the documented operative approach and reconstruction.
This code describes open cranial surgery to treat craniosynostosis by removing fused suture-bearing bone as part of cranial vault correction. Pediatric neurosurgeons and craniofacial surgeons typically perform the operation in a hospital operating room. The operative report should identify the affected sutures and explain the bone excision and reconstructive work performed; the diagnosis alone does not establish that this specific procedure was done.
Select the code that matches the documented surgical technique and extent, distinguishing excision from procedures limited to releasing or incising fused sutures. CMS assigns a 90-day global period, including 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. Modifier 50 is inappropriate. Assistant-at-surgery payment may be made; co-surgeons require supporting documentation, and team surgery is not permitted.
CMS billing rules for 61558
- 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 RVU25.84 · 47%
- Practice expense (office) RVU18.61 · 34%
- Malpractice RVU10.92 · 20%
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.
61558 compared with similar codes
Office rates for Minnesota, from the same CMS release.
No office rate
Code 61552 describes release involving multiple cranial sutures; use this code when the documented operation supports the excision procedure instead.
No office rate
Code 61556 is an incision-based craniosynostosis procedure. Distinguish it from this code by the operative technique and work documented.
No office rate
Code 61563 concerns excision of a skull tumor. This code is for craniosynostosis surgery, not removal of a skull neoplasm.
Compare 61558 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
Minnesota →
Office / nonfacility
Unavailable
Facility
$1610.66
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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 61558 in Minnesota.
PPRRVU2026_Oct_nonQPP.csv
6,811
- Code
- 61558
- Physician work
- 25.84
- Practice expense
- 18.61
- Malpractice
- 10.92
GPCI2026.csv
66
- Locality
- Minnesota
- Physician work
- 1.000
- Practice expense
- 1.029
- Malpractice
- 0.296
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 25.84 | × 1.000 | 25.8400 |
| Practice expense | 18.61 | × 1.029 | 19.1497 |
| Malpractice | 10.92 | × 0.296 | 3.2323 |
| Total RVUs | 48.2220 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Minnesota$1610.66
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 25.84 | 1 |
| Practice expense | 18.61 | 1.029 |
| Malpractice | 10.92 | 0.296 |
(25.84 × 1 + 18.61 × 1.029 + 10.92 × 0.296) × $33.4009 = $1610.66
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.
61558 billing questions
How is this code distinguished from a suture-release procedure?
Use this code when the operative report supports excision of fused suture-bearing bone as part of the craniosynostosis operation. Procedures limited to releasing or incising sutures are represented by different codes.
What documentation supports reporting this procedure?
Document the craniosynostosis, the affected suture or sutures, the bone excised, and the reconstructive steps performed. The operative details should support the specific technique selected.
Does the code include postoperative care?
Yes. CMS assigns a 90-day global period that includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.
Can modifier 50 be reported?
No. CMS identifies bilateral adjustment as inappropriate for this code.
How are other procedures in the same session paid?
Under the standard multiple-procedure reduction, the highest-valued procedure is paid in full and other procedures are paid at 50% when performed in the same session.
Can an assistant or co-surgeon be reported?
CMS permits assistant-at-surgery payment. Co-surgeon payment requires supporting documentation; team surgery is not permitted.
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.
6,80861552,,Release of skull seams,A,,19.89,16.01,NA,16.01,,8.38,44.28,44.28,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,80961556,,Incise skull/sutures,A,,23.49,16.82,NA,16.82,,9.92,50.23,50.23,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,81061557,,Incise skull/sutures,A,,22.73,17.76,NA,17.76,,9.60,50.09,50.09,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,81161558,,Excision of skull/sutures,A,,25.84,18.61,NA,18.61,,10.92,55.37,55.37,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,81261559,,Excision of skull/sutures,A,,33.17,23.00,NA,23.00,,14.00,70.17,70.17,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,81361563,,Excision of skull tumor,A,,27.73,18.31,NA,18.31,,11.72,57.76,57.76,0,090,0.11,0.76,0.13,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,81461564,,Excision of skull tumor,A,,33.87,21.68,NA,21.68,,14.30,69.85,69.85,0,090,0.11,0.76,0.13,2,1,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6314212,MA,99,REST OF MASSACHUSETTS,1.016,1.053,0.797
6408202,MI,01,DETROIT,1.000,0.965,1.686
6508202,MI,99,REST OF MICHIGAN,1.000,0.913,1.129
6606202,MN,00,MINNESOTA,1.000,1.029,0.296
6707302,MS,00,MISSISSIPPI,1.000,0.861,0.739
6805302,MO,02,METROPOLITAN KANSAS CITY,1.000,0.939,0.977
6905302,MO,01,METROPOLITAN ST. LOUIS,1.000,0.952,1.002