51726 represents complex cystometry without voiding pressure assessment. Choose 51728 when the documented test also evaluates pressure during voiding.
On this page
CMS RVU26D · Effective 2026-10-01
51728 Urodynamic study Medicare reimbursement rates in Oklahoma
Reports complex bladder pressure testing during filling and voiding when evaluation of urinary symptoms includes a voiding pressure study. Compare 51728 office and facility rates across CMS payment localities in Oklahoma.
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 51728 in Oklahoma?
Oklahoma 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
$307.17
1 of 1 localities have a supported rate.
Payment area: Oklahoma
One mapped payment locality.
Facility setting
No supported rate
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.
Urology diagnostics
About 51728: Complex cystometry with voiding pressure
Reports complex bladder pressure testing during filling and voiding when evaluation of urinary symptoms includes a voiding pressure study.
This urodynamic test records bladder pressure as the bladder fills and during voiding, helping assess how the bladder stores and empties urine. Urologists and urogynecologists commonly order it for patients with urinary retention, incontinence, suspected outlet obstruction, or neurogenic bladder. Testing is generally performed in an office or facility with catheter-based pressure measurement and recording equipment.
Report 51728 when the completed study includes complex cystometry and voiding pressure assessment; a filling-only complex study or one that also includes a urethral pressure profile may call for a different code. The record should support the study performed and its interpretation. The global service includes the professional interpretation and technical work; modifier 26 identifies interpretation, and modifier TC identifies equipment and staff. This has a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures occur in one session, the highest-valued is paid in full and others are subject to the standard 50% reduction. Bilateral adjustment is inappropriate. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are not permitted.
CMS billing rules for 51728
- Global period
- Minor procedure with a 0-day global period: same-day preoperative and postoperative care is included.
- Professional and technical components
- Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.
- 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 is paid only with documentation of medical necessity.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU2.06 · 20%
- Practice expense (office) RVU7.80 · 77%
- Malpractice RVU0.22 · 2%
78.3K
Medicare services in 2024 · #638 by national volume
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.
51728 compared with similar codes
Office rates for Oklahoma, from the same CMS release.
51727 adds a urethral pressure profile to complex cystometry. 51728 instead includes voiding pressure assessment without that profile.
51729 includes both voiding pressure assessment and a urethral pressure profile; 51728 includes the voiding-pressure component without the profile.
51797 reports a separate intra-abdominal voiding pressure study as an add-on. It does not replace the complex cystometry and voiding pressure service reported with 51728.
Compare 51728 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
Oklahoma →
Office / nonfacility
$307.17
Facility
Unavailable
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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 51728 in Oklahoma.
PPRRVU2026_Oct_nonQPP.csv
6,063
- Code
- 51728
- Physician work
- 2.06
- Practice expense
- 7.80
- Malpractice
- 0.22
GPCI2026.csv
86
- Locality
- Oklahoma
- Physician work
- 1.000
- Practice expense
- 0.893
- Malpractice
- 0.777
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 2.06 | × 1.000 | 2.0600 |
| Practice expense | 7.80 | × 0.893 | 6.9654 |
| Malpractice | 0.22 | × 0.777 | 0.1709 |
| Total RVUs | 9.1963 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Oklahoma$307.17
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 2.06 | 1 |
| Practice expense | 7.8 | 0.893 |
| Malpractice | 0.22 | 0.777 |
(2.06 × 1 + 7.8 × 0.893 + 0.22 × 0.777) × $33.4009 = $307.17
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.
51728 billing questions
When should 51728 be selected instead of 51726?
Use 51728 when the complex cystometric study includes assessment of voiding pressure. A complex filling study without that voiding-pressure component is distinguished by 51726.
How does 51728 differ from 51729?
51729 includes a urethral pressure profile in addition to complex cystometry and voiding pressure assessment. Use 51728 when the documented study includes voiding pressure but not that additional profile.
Can the professional and technical portions be billed separately?
Yes. Modifier 26 identifies the professional interpretation, and modifier TC identifies the technical portion, including equipment and staff. Without either modifier, the code represents the global service.
Can 51797 be reported with 51728?
51797 is an add-on for a separately performed intra-abdominal voiding pressure study and may be reported with 51728 when that additional study is performed and documented.
What documentation supports reporting 51728?
Document the complex cystometric testing, the voiding pressure assessment performed, and the interpretation or findings. The record should distinguish the service from filling-only cystometry and from a study that includes a urethral pressure profile.
How does the multiple-procedure reduction affect 51728?
When it is one of multiple procedures performed in the same session, the highest-valued procedure is paid in full and the other procedure or procedures are subject to the standard 50% 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 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.
