$68.70
Choose 51785 for needle-electrode sphincter EMG and 51784 for the non-needle technique.
On this page
CMS RVU26D · Effective 2026-10-01
51785 Sphincter EMG Medicare reimbursement rates in Colorado
Needle-electrode EMG evaluates anal or urethral sphincter muscle activity, often during a urodynamic workup for voiding dysfunction or incontinence. Compare 51785 office and facility rates across CMS payment localities in Colorado.
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 51785 in Colorado?
Colorado 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
$410.17
1 of 1 localities have a supported rate.
Payment area: Colorado
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 51785: Needle sphincter electromyography study
Needle-electrode EMG evaluates anal or urethral sphincter muscle activity, often during a urodynamic workup for voiding dysfunction or incontinence.
This study records electrical activity from the anal or urethral sphincter using a needle electrode. Urologists and other clinicians performing urodynamic or pelvic-floor evaluations may use it when investigating suspected sphincter dysfunction, neurogenic bladder, or urinary incontinence. The needle technique distinguishes this service from sphincter EMG performed without a needle electrode.
Report the study when the needle-electrode sphincter EMG is performed and documented; the record should identify the site studied and support that the EMG service was completed. It may be performed as part of a broader urodynamic evaluation, with other services reported when separately performed and documented. Medicare recognizes professional and technical components: modifier 26 identifies interpretation, modifier TC identifies equipment and staff, and no component modifier represents the global service. For multiple procedures in the same session, the highest-valued procedure is paid in full and the others are subject to the standard 50% reduction.
CMS billing rules for 51785
- 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.
Where the value comes from
- Work RVU1.49 · 13%
- Practice expense (office) RVU9.75 · 83%
- Malpractice RVU0.51 · 4%
3K
Medicare services in 2024 · #2182 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.
51785 compared with similar codes
Office rates for Colorado, from the same CMS release.
$283.71
51726 measures bladder pressure during a complex cystometrogram; 51785 records electrical activity from the anal or urethral sphincter.
$352.57
51728 includes cystometrogram and voiding-pressure evaluation. Report 51785 for the distinct needle-electrode sphincter EMG when performed.
$259.33
51792 is a urinary reflex study; 51785 records needle-electrode EMG activity in the anal or urethral sphincter.
Compare 51785 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
Colorado →
Office / nonfacility
$410.17
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 51785 in Colorado.
PPRRVU2026_Oct_nonQPP.csv
6,078
- Code
- 51785
- Physician work
- 1.49
- Practice expense
- 9.75
- Malpractice
- 0.51
GPCI2026.csv
37
- Locality
- Colorado
- Physician work
- 1.012
- Practice expense
- 1.064
- Malpractice
- 0.781
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 1.49 | × 1.012 | 1.5079 |
| Practice expense | 9.75 | × 1.064 | 10.3740 |
| Malpractice | 0.51 | × 0.781 | 0.3983 |
| Total RVUs | 12.2802 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Colorado$410.17
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 1.49 | 1.012 |
| Practice expense | 9.75 | 1.064 |
| Malpractice | 0.51 | 0.781 |
(1.49 × 1.012 + 9.75 × 1.064 + 0.51 × 0.781) × $33.4009 = $410.17
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.
51785 billing questions
How does 51785 differ from 51784?
51785 is the needle-electrode sphincter EMG. Use 51784 for sphincter EMG performed without a needle electrode.
Can 51785 be reported with a cystometrogram?
It may be reported with a cystometrogram when the sphincter EMG is separately performed and documented as part of the evaluation. The services are distinct: 51785 evaluates sphincter electrical activity, while cystometrogram codes assess bladder pressure and function.
When should modifier 26 or TC be used?
Use modifier 26 for the professional interpretation and modifier TC for the technical service, including equipment and staff. Without either modifier, the claim represents the global service.
How does Medicare pay when 51785 is performed with other procedures?
For multiple procedures performed in the same session, Medicare pays the highest-valued procedure in full and applies a 50% reduction to the others.
What documentation supports 51785?
Document the sphincter site examined, use of a needle electrode, and the EMG service performed. The record should distinguish this study from any separately reported urodynamic tests.
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.
6,07551784,,Anal/urinary muscle study,A,,0.73,1.18,,1.18,NA,0.08,1.99,1.99,1,XXX,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,07651784,26,Anal/urinary muscle study,A,,0.73,0.31,,0.31,,0.07,1.11,1.11,1,XXX,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,07751784,TC,Anal/urinary muscle study,A,,0.00,0.87,,0.87,NA,0.01,0.88,0.88,1,XXX,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,02,0,99,0.00,0.00,0.00
6,07851785,,Anal/urinary muscle study,A,,1.49,9.75,,9.75,NA,0.51,11.75,11.75,1,XXX,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,07951785,26,Anal/urinary muscle study,A,,1.49,0.83,,0.83,,0.48,2.80,2.80,1,XXX,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
6,08051785,TC,Anal/urinary muscle study,A,,0.00,8.92,,8.92,NA,0.03,8.95,8.95,1,XXX,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,03,0,99,0.00,0.00,0.00
6,08151792,,Urinary reflex study,A,,1.07,6.14,,6.14,NA,0.19,7.40,7.40,1,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3401112,CA,69,VISALIA,1.017,1.096,0.536
3501112,CA,70,YUBA CITY,1.017,1.096,0.536
3601112,CA,75,REST OF CALIFORNIA,1.017,1.096,0.536
3704112,CO,01,COLORADO,1.012,1.064,0.781
3813102,CT,00,CONNECTICUT,1.020,1.077,1.210
3912202,DC,01,DC + MD/VA SUBURBS,1.054,1.178,1.113
4012102,DE,01,DELAWARE,1.005,0.988,0.899