CPT code 51785: Sphincter EMG, needle electrode technique2026 Medicare rate & RVUs in New Mexico
Needle-electrode EMG evaluates anal or urethral sphincter muscle activity, often during a urodynamic workup for voiding dysfunction or incontinence.
In New Mexico, Medicare pays $368.85 for 51785 in the office.
Check a contract rate as a % of Medicare · 51785 nationwide
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 11 sections
What 51785 covers
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.
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.
How New Mexico compares for 51785
Across 109 of 109 payment localities, the office rate for 51785 runs from $338.28 in Arkansas to $533.97 in San Benito County, CA. New Mexico pays $368.85. The RVUs are the same everywhere; the geographic indexes change the dollars.
- New Mexico · this page$368.85
- Los Angeles, CA · California$448.37+$79.52
- Washington, DC area · District of Columbia$455.04+$86.19
- Miami, FL · Florida$431.86+$63.01
- Chicago, IL · Illinois$416.50+$47.65
- Manhattan, NY · New York$458.38+$89.53
- Alaska · Alaska$430.86+$62.01
Other areas in New Mexico first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | $344.36 | — |
| ArkansasArkansas | $338.28 | — |
| ArizonaArizona | $379.91 | — |
| Bakersfield, CACalifornia | $418.01 | — |
| Chico, CACalifornia | $416.67 | — |
| El Centro, CACalifornia | $416.75 | — |
| Fresno, CACalifornia | $416.67 | — |
| Hanford, CACalifornia | $416.67 | — |
| Madera, CACalifornia | $416.67 | — |
| Merced, CACalifornia | $416.67 | — |
| Modesto, CACalifornia | $416.67 | — |
| Napa, CACalifornia | $490.77 | — |
| Oxnard, CACalifornia | $446.70 | — |
| Redding, CACalifornia | $416.67 | — |
| Rest of CaliforniaCalifornia | $416.67 | — |
| Riverside, CACalifornia | $422.12 | — |
| Sacramento, CACalifornia | $439.43 | — |
| Salinas, CACalifornia | $437.88 | — |
| San Diego, CACalifornia | $449.98 | — |
| Marin County, CACalifornia | $521.49 | — |
| San Francisco, CACalifornia | $520.91 | — |
| San Benito County, CACalifornia | $533.97 | — |
| Santa Clara County, CACalifornia | $531.60 | — |
| San Luis Obispo, CACalifornia | $430.67 | — |
| Santa Cruz, CACalifornia | $455.62 | — |
| Santa Maria, CACalifornia | $440.01 | — |
| Santa Rosa, CACalifornia | $460.30 | — |
| Stockton, CACalifornia | $416.67 | — |
| Vallejo, CACalifornia | $489.94 | — |
| Visalia, CACalifornia | $416.67 | — |
| Yuba City, CACalifornia | $416.67 | — |
| ColoradoColorado | $410.17 | — |
| ConnecticutConnecticut | $422.11 | — |
| DelawareDelaware | $387.08 | — |
| Fort Lauderdale, FLFlorida | $410.46 | — |
| Rest of FloridaFlorida | $386.70 | — |
| Atlanta, GAGeorgia | $401.24 | — |
| Rest of GeorgiaGeorgia | $360.56 | — |
| Hawaii, Guam, HIHawaii | $429.90 | — |
| IowaIowa | $354.51 | — |
| IdahoIdaho | $357.43 | — |
| East St. Louis, ILIllinois | $383.68 | — |
| Rest of IllinoisIllinois | $373.72 | — |
| Suburban Chicago, ILIllinois | $414.75 | — |
| IndianaIndiana | $359.93 | — |
| KansasKansas | $352.75 | — |
| KentuckyKentucky | $354.86 | — |
| New Orleans, LALouisiana | $375.56 | — |
| Rest of LouisianaLouisiana | $354.29 | — |
| Metropolitan Boston, MAMassachusetts | $455.81 | — |
| Rest of MassachusettsMassachusetts | $407.06 | — |
| Baltimore area, MDMaryland | $421.07 | — |
| Rest of MarylandMaryland | $395.47 | — |
| Rest of MaineMaine | $359.97 | — |
| Southern Maine, MEMaine | $383.24 | — |
| Detroit, MIMichigan | $392.75 | — |
| Rest of MichiganMichigan | $366.33 | — |
| MinnesotaMinnesota | $389.91 | — |
| Metropolitan Kansas City, MOMissouri | $372.20 | — |
| Metropolitan St. Louis, MOMissouri | $376.86 | — |
| Rest of MissouriMissouri | $347.08 | — |
| MississippiMississippi | $342.75 | — |
| MontanaMontana | $392.43 | — |
| North CarolinaNorth Carolina | $364.49 | — |
| North DakotaNorth Dakota | $382.34 | — |
| NebraskaNebraska | $356.79 | — |
| New HampshireNew Hampshire | $403.68 | — |
| Northern New JerseyNew Jersey | $448.86 | — |
| Rest of New JerseyNew Jersey | $426.06 | — |
| NevadaNevada | $389.94 | — |
| NYC suburbs and Long Island, NYNew York | $471.79 | — |
| Poughkeepsie and northern NYC suburbs, NYNew York | $429.21 | — |
| Queens, NYNew York | $462.44 | — |
| Rest of New YorkNew York | $371.12 | — |
| OhioOhio | $364.26 | — |
| OklahomaOklahoma | $353.82 | — |
| Portland, OROregon | $425.04 | — |
| Rest of OregonOregon | $386.10 | — |
| Metropolitan Philadelphia, PAPennsylvania | $410.00 | — |
| Rest of PennsylvaniaPennsylvania | $364.82 | — |
| Puerto RicoPuerto Rico | $395.79 | — |
| Rhode IslandRhode Island | $402.31 | — |
| South CarolinaSouth Carolina | $365.16 | — |
| South DakotaSouth Dakota | $381.15 | — |
| TennesseeTennessee | $354.94 | — |
| Austin, TXTexas | $409.51 | — |
| Beaumont, TXTexas | $361.94 | — |
| Brazoria, TXTexas | $386.18 | — |
| Dallas, TXTexas | $389.19 | — |
| Fort Worth, TXTexas | $386.15 | — |
| Galveston, TXTexas | $387.65 | — |
| Houston, TXTexas | $396.98 | — |
| Rest of TexasTexas | $374.20 | — |
| UtahUtah | $371.18 | — |
| VirginiaVirginia | $381.92 | — |
| Virgin Islands, VIUnited States Virgin Islands | $395.79 | — |
| VermontVermont | $380.79 | — |
| Rest of WashingtonWashington | $406.30 | — |
| King County, WAWashington | $465.76 | — |
| WisconsinWisconsin | $367.00 | — |
| West VirginiaWest Virginia | $357.14 | — |
| WyomingWyoming | $388.03 | — |
51785 rates by state
Office rate range in each state. Select a state to see its payment localities.
Explore a state
Local rates. Clear comparisons.
Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.
$338.28
$475.32
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $430.86 | 1 |
| AL | $344.36 | 1 |
| AR | $338.28 | 1 |
| AZ | $379.91 | 1 |
| CA | $416.67–$533.97 | 29 |
| CO | $410.17 | 1 |
| CT | $422.11 | 1 |
| DC | $455.04 | 1 |
| DE | $387.08 | 1 |
| FL | $386.70–$431.86 | 3 |
| GA | $360.56–$401.24 | 2 |
| GU | $429.90 | 1 |
| HI | $429.90 | 1 |
| IA | $354.51 | 1 |
| ID | $357.43 | 1 |
| IL | $373.72–$416.50 | 4 |
| IN | $359.93 | 1 |
| KS | $352.75 | 1 |
| KY | $354.86 | 1 |
| LA | $354.29–$375.56 | 2 |
| MA | $407.06–$455.81 | 2 |
| MD | $395.47–$455.04 | 3 |
| ME | $359.97–$383.24 | 2 |
| MI | $366.33–$392.75 | 2 |
| MN | $389.91 | 1 |
| MO | $347.08–$376.86 | 3 |
| MS | $342.75 | 1 |
| MT | $392.43 | 1 |
| NC | $364.49 | 1 |
| ND | $382.34 | 1 |
| NE | $356.79 | 1 |
| NH | $403.68 | 1 |
| NJ | $426.06–$448.86 | 2 |
| NM | $368.85 | 1 |
| NV | $389.94 | 1 |
| NY | $371.12–$471.79 | 5 |
| OH | $364.26 | 1 |
| OK | $353.82 | 1 |
| OR | $386.10–$425.04 | 2 |
| PA | $364.82–$410.00 | 2 |
| PR | $395.79 | 1 |
| RI | $402.31 | 1 |
| SC | $365.16 | 1 |
| SD | $381.15 | 1 |
| TN | $354.94 | 1 |
| TX | $361.94–$409.51 | 8 |
| UT | $371.18 | 1 |
| VA | $381.92–$455.04 | 2 |
| VI | $395.79 | 1 |
| VT | $380.79 | 1 |
| WA | $406.30–$465.76 | 2 |
| WI | $367.00 | 1 |
| WV | $357.14 | 1 |
| WY | $388.03 | 1 |
How the 51785 rate is calculated
Each of 51785’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 · 51785
RVUs × geographic indexes × conversion factor
Work1.49
1.49 RVUs× 1.000 GPCI
Practice expense9.75
9.75 RVUs× 1.000 GPCI
Malpractice0.51
0.51 RVUs× 1.000 GPCI
Adjusted RVUs
11.7500
Conversion factor
$33.4009
Medicare rate
$392.46
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact New Mexico inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
6,078
- Code
- 51785
- Physician work
- 1.49
- Practice expense
- 9.75
- Malpractice
- 0.51
GPCI2026.csv
77
- Locality
- New Mexico
- Physician work
- 1.000
- Practice expense
- 0.917
- Malpractice
- 1.201
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 1.49 | × 1.000 | 1.4900 |
| Practice expense | 9.75 | × 0.917 | 8.9407 |
| Malpractice | 0.51 | × 1.201 | 0.6125 |
| Total RVUs | 11.0433 | ||
| Conversion factor | × 33.4009 | ||
Office rate, New Mexico$368.85
Office: (1.49 × 1 + 9.75 × 0.917 + 0.51 × 1.201) × $33.4009 = $368.85
Payment rules and modifiers for 51785
The CMS indicators that decide how 51785 is paid alongside other services.
CMS payment indicators · 51785
Sphincter EMG, needle electrode technique
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| 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) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
51785 without 26 · national office
$392.46
Sphincter EMG, needle electrode technique
51785-26 · Professional component
$93.52
Pays only the interpretation and report.
How 51785 has changed in New Mexico
51785 · Office / nonfacility
$368.85
Effective 2026-10-01
The base rate is $12.61 higher than on 2025-10-01, moving from $356.24 to $368.85 (3.5%).
It is unchanged from the immediately preceding available release, effective 2026-07-01.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
January 1, 2026
RVU26A
$356.24changed to$368.85
- Conversion factor 32.3465 changed to 33.4009
- Work RVU 1.53 changed to 1.49
- Practice expense RVU 9.76 changed to 9.75
- Malpractice RVU 0.53 changed to 0.51
- Practice expense GPCI 0.908 changed to 0.917
- Malpractice GPCI 1.172 changed to 1.201
Held through RVU26B, RVU26C, RVU26D.
January 1, 2025
RVU25A
$405.72changed to$356.24
- Conversion factor 33.2875 changed to 32.3465
- Practice expense RVU 11.08 changed to 9.76
- Malpractice RVU 0.51 changed to 0.53
Held through RVU25B, RVU25C, RVU25D.
March 9, 2024
RVU24AR
$399.10changed to$405.72
- Conversion factor 32.7442 changed to 33.2875
Held through RVU24B, RVU24C, RVU24D.
January 1, 2024
RVU24A
$410.91changed to$399.10
- Conversion factor 33.8872 changed to 32.7442
- Practice expense RVU 11.06 changed to 11.08
- Malpractice RVU 0.53 changed to 0.51
- Practice expense GPCI 0.902 changed to 0.908
- Malpractice GPCI 1.169 changed to 1.172
January 1, 2023
RVU23A
$427.13changed to$410.91
- Conversion factor 34.6062 changed to 33.8872
- Practice expense RVU 11.43 changed to 11.06
- Malpractice RVU 0.49 changed to 0.53
- Practice expense GPCI 0.896 changed to 0.902
- Malpractice GPCI 1.166 changed to 1.169
Held through RVU23B, RVU23C, RVU23D.
January 1, 2022
RVU22A
$411.82changed to$427.13
- Conversion factor 34.8931 changed to 34.6062
- Practice expense RVU 10.84 changed to 11.43
- Malpractice RVU 0.48 changed to 0.49
Held through RVU22B, RVU22C, RVU22D.
January 1, 2021
RVU21A
$358.71changed to$411.82
- Conversion factor 36.0896 changed to 34.8931
- Practice expense RVU 8.65 changed to 10.84
- Malpractice RVU 0.46 changed to 0.48
- Practice expense GPCI 0.908 changed to 0.896
- Malpractice GPCI 1.207 changed to 1.166
Held through RVU21B, RVU21C, RVU21D.
January 1, 2020
RVU20A
$314.37changed to$358.71
- Conversion factor 36.0391 changed to 36.0896
- Practice expense RVU 7.16 changed to 8.65
- Malpractice RVU 0.48 changed to 0.46
- Practice expense GPCI 0.921 changed to 0.908
- Malpractice GPCI 1.247 changed to 1.207
Held through RVU20B, RVU20C, RVU20D.
January 1, 2019
RVU19A
$270.24changed to$314.37
- Conversion factor 35.9996 changed to 36.0391
- Practice expense RVU 5.88 changed to 7.16
- Malpractice RVU 0.45 changed to 0.48
Held through RVU19B, RVU19C, RVU19D.
January 1, 2018
RVU18AR1
$256.97changed to$270.24
- Conversion factor 35.8887 changed to 35.9996
- Practice expense RVU 5.57 changed to 5.88
- Malpractice RVU 0.42 changed to 0.45
- Practice expense GPCI 0.920 changed to 0.921
- Malpractice GPCI 1.204 changed to 1.247
Held through RVU18B, RVU18C, RVU18D.
January 1, 2017
RVU17A
$253.94changed to$256.97
- Conversion factor 35.8043 changed to 35.8887
- Practice expense RVU 5.56 changed to 5.57
- Malpractice RVU 0.39 changed to 0.42
- Practice expense GPCI 0.919 changed to 0.920
- Malpractice GPCI 1.161 changed to 1.204
Held through RVU17B, RVU17C, RVU17D.
January 1, 2016
RVU16A
$242.67changed to$253.94
- Conversion factor 35.9335 changed to 35.8043
- Practice expense RVU 5.33 changed to 5.56
- Malpractice RVU 0.28 changed to 0.39
Held through RVU16B, RVU16C, RVU16D.
July 1, 2015
RVU15C
$241.46changed to$242.67
- Conversion factor 35.7547 changed to 35.9335
Held through RVU15D.
January 1, 2015
RVU15A
$240.97changed to$241.46
- Conversion factor 35.8228 changed to 35.7547
- Practice expense RVU 5.52 changed to 5.33
- Malpractice RVU 0.12 changed to 0.28
- Practice expense GPCI 0.918 changed to 0.919
- Malpractice GPCI 1.079 changed to 1.161
Held through RVU15B.
January 1, 2014
RVU14A
$242.52changed to$240.97
- Conversion factor 34.0230 changed to 35.8228
- Practice expense RVU 5.97 changed to 5.52
- Malpractice RVU 0.13 changed to 0.12
- Practice expense GPCI 0.916 changed to 0.918
- Malpractice GPCI 0.997 changed to 1.079
Held through RVU14B, RVU14C, RVU14D.
January 1, 2013
RVU13AR
Earliest loaded release: $242.52
Held through RVU13B, RVU13C, RVU13D.
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | $368.85 | Not available in this setting | RVU26D |
| 2026-07-01 | $368.85 | Not available in this setting | RVU26C |
| 2026-04-01 | $368.85 | Not available in this setting | RVU26B |
| 2026-01-01 | $368.85 | Not available in this setting | RVU26A |
| 2025-10-01 | $356.24 | Not available in this setting | RVU25D |
| 2025-07-01 | $356.24 | Not available in this setting | RVU25C |
| 2025-04-01 | $356.24 | Not available in this setting | RVU25B |
| 2025-01-01 | $356.24 | Not available in this setting | RVU25A |
| 2024-10-01 | $405.72 | Not available in this setting | RVU24D |
| 2024-07-01 | $405.72 | Not available in this setting | RVU24C |
| 2024-04-01 | $405.72 | Not available in this setting | RVU24B |
| 2024-03-09 | $405.72 | Not available in this setting | RVU24AR |
| 2024-01-01 | $399.10 | Not available in this setting | RVU24A |
| 2023-10-01 | $410.91 | Not available in this setting | RVU23D |
| 2023-07-01 | $410.91 | Not available in this setting | RVU23C |
| 2023-04-01 | $410.91 | Not available in this setting | RVU23B |
| 2023-01-01 | $410.91 | Not available in this setting | RVU23A |
| 2022-10-01 | $427.13 | Not available in this setting | RVU22D |
| 2022-07-01 | $427.13 | Not available in this setting | RVU22C |
| 2022-04-01 | $427.13 | Not available in this setting | RVU22B |
| 2022-01-01 | $427.13 | Not available in this setting | RVU22A |
| 2021-10-01 | $411.82 | Not available in this setting | RVU21D |
| 2021-07-01 | $411.82 | Not available in this setting | RVU21C |
| 2021-04-01 | $411.82 | Not available in this setting | RVU21B |
| 2021-01-01 | $411.82 | Not available in this setting | RVU21A |
| 2020-10-01 | $358.71 | Not available in this setting | RVU20D |
| 2020-07-01 | $358.71 | Not available in this setting | RVU20C |
| 2020-04-01 | $358.71 | Not available in this setting | RVU20B |
| 2020-01-01 | $358.71 | Not available in this setting | RVU20A |
| 2019-10-01 | $314.37 | Not available in this setting | RVU19D |
| 2019-07-01 | $314.37 | Not available in this setting | RVU19C |
| 2019-04-01 | $314.37 | Not available in this setting | RVU19B |
| 2019-01-01 | $314.37 | Not available in this setting | RVU19A |
| 2018-10-01 | $270.24 | Not available in this setting | RVU18D |
| 2018-07-01 | $270.24 | Not available in this setting | RVU18C |
| 2018-04-01 | $270.24 | Not available in this setting | RVU18B |
| 2018-01-01 | $270.24 | Not available in this setting | RVU18AR1 |
| 2017-10-01 | $256.97 | Not available in this setting | RVU17D |
| 2017-07-01 | $256.97 | Not available in this setting | RVU17C |
| 2017-04-01 | $256.97 | Not available in this setting | RVU17B |
| 2017-01-01 | $256.97 | Not available in this setting | RVU17A |
| 2016-10-01 | $253.94 | Not available in this setting | RVU16D |
| 2016-07-01 | $253.94 | Not available in this setting | RVU16C |
| 2016-04-01 | $253.94 | Not available in this setting | RVU16B |
| 2016-01-01 | $253.94 | Not available in this setting | RVU16A |
| 2015-10-01 | $242.67 | Not available in this setting | RVU15D |
| 2015-07-01 | $242.67 | Not available in this setting | RVU15C |
| 2015-04-01 | $241.46 | Not available in this setting | RVU15B |
| 2015-01-01 | $241.46 | Not available in this setting | RVU15A |
| 2014-10-01 | $240.97 | Not available in this setting | RVU14D |
| 2014-07-01 | $240.97 | Not available in this setting | RVU14C |
| 2014-04-01 | $240.97 | Not available in this setting | RVU14B |
| 2014-01-01 | $240.97 | Not available in this setting | RVU14A |
| 2013-10-01 | $242.52 | Not available in this setting | RVU13D |
| 2013-07-01 | $242.52 | Not available in this setting | RVU13C |
| 2013-04-01 | $242.52 | Not available in this setting | RVU13B |
| 2013-01-01 | $242.52 | Not available in this setting | RVU13AR |
Where the New Mexico rate applies
New Mexico is a Medicare payment area, not a city. Our Census mapping connects it to 528 cities and communities in New Mexico. Some span more than one payment area; confirm with the service ZIP.
- Abeytas
- Abiquiu
- Acomita Lake
- Adelino
- Agua Fria
- Alamillo
- Alamo
- Alamogordo
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 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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