Choose 58356 for cryotherapy with intraoperative ultrasound guidance and monitoring; choose 58353 when the endometrium is ablated thermally.
On this page
CMS RVU26D · Effective 2026-10-01
58356 Endometrial ablation Medicare reimbursement rates in Iowa
Reports destruction of the uterine lining by cryotherapy, including intraoperative ultrasound guidance and monitoring, for selected patients with abnormal uterine bleeding. Compare 58356 office and facility rates across CMS payment localities in Iowa.
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 58356 in Iowa?
Iowa 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
$1477.90
1 of 1 localities have a supported rate.
Payment area: Iowa
One mapped payment locality.
Facility setting
$278.35
1 of 1 localities have a supported rate.
Payment area: Iowa
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.
Gynecology procedure
About 58356: Endometrial cryoablation
Reports destruction of the uterine lining by cryotherapy, including intraoperative ultrasound guidance and monitoring, for selected patients with abnormal uterine bleeding.
A gynecologist uses a cryoprobe to freeze and destroy the endometrial lining as a treatment for abnormal uterine bleeding, often heavy menstrual bleeding. The procedure is generally performed in an outpatient setting after evaluation of the bleeding and confirmation that endometrial ablation is an appropriate treatment. The code includes intraoperative ultrasound guidance and monitoring used during the cryoablation.
Report the service when cryotherapy is the method used; do not select it for thermal ablation or hysteroscopic ablation. The record should support the bleeding indication, the cryoablation technique, and the work performed. Related postoperative visits during the 10-day global period are included. 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 reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment may be available and co-surgeons are permitted; team surgery is not permitted.
CMS billing rules for 58356
- Global period
- Minor procedure with a 10-day global period: related postoperative visits for 10 days 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 RVU6.25 · 13%
- Practice expense (office) RVU41.05 · 85%
- Malpractice RVU1.10 · 2%
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.
58356 compared with similar codes
Office rates for Iowa, from the same CMS release.
58563 describes endometrial ablation performed hysteroscopically. 58356 identifies cryoablation with ultrasound guidance and monitoring.
Insert intrauterine device
58300 reports insertion of an intrauterine device, not destruction of the endometrial lining by cryotherapy.
Compare 58356 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
Iowa →
Office / nonfacility
$1477.90
Facility
$278.35
Need rates for a whole code list?
Fee-sheet and API access are in early access. Tell us which codes and locations your team needs.
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 58356 in Iowa.
PPRRVU2026_Oct_nonQPP.csv
6,550
- Code
- 58356
- Physician work
- 6.25
- Practice expense
- 41.05
- Malpractice
- 1.10
GPCI2026.csv
53
- Locality
- Iowa
- Physician work
- 1.000
- Practice expense
- 0.915
- Malpractice
- 0.397
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 6.25 | × 1.000 | 6.2500 |
| Practice expense | 41.05 | × 0.915 | 37.5607 |
| Malpractice | 1.10 | × 0.397 | 0.4367 |
| Total RVUs | 44.2475 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Iowa$1477.90
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 6.25 | 1 |
| Practice expense | 41.05 | 0.915 |
| Malpractice | 1.1 | 0.397 |
(6.25 × 1 + 41.05 × 0.915 + 1.1 × 0.397) × $33.4009 = $1477.90
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 6.25 | 1 |
| Practice expense | 1.8 | 0.915 |
| Malpractice | 1.1 | 0.397 |
(6.25 × 1 + 1.8 × 0.915 + 1.1 × 0.397) × $33.4009 = $278.35
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.
58356 billing questions
How does 58356 differ from 58353?
58356 is for endometrial destruction by cryotherapy and includes intraoperative ultrasound guidance and monitoring. Use 58353 for thermal endometrial ablation instead.
Can the intraoperative ultrasound be reported separately?
The code includes intraoperative ultrasound guidance and monitoring for the cryoablation; those elements are not separately reported as additional services for this procedure.
Should modifier 50 be appended?
No. The uterine target is not treated as a bilateral service for this code, and the CMS bilateral adjustment does not apply.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, with other procedures subject to the standard multiple procedure reduction. Related postoperative visits for 10 days are included in this code's global period.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment may be available, and co-surgeons are permitted. Team surgery is not permitted for this code.
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.
