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Procedure price report · Other diagnostic nervous system procedures

Nerve monitoring during surgery, per 15 minutes

CPT 95940the billing code this page is about

Continuous monitoring of nerve and spinal cord function by a provider present in the operating room; one unit covers each 15 minutes of monitoring.

Hospitals typically charge $163 cash for this outpatient procedure — the median across 1,135 hospitals that filed a usable cash price; the average of the middle 60% is $174. Most fall between $72 and $321 (20th–80th percentile).

Hospitals
1,135
States
50
Filings dated
Jan 2024 – Sep 2026
Computed
September 25, 2026
Prices checked
through September 25, 2026

Median: half of hospitals filed less, half more — and it is a price some hospital actually filed. Average of the middle 60%: the mean of the prices between the 20th and 80th percentiles. We never publish the plain average, the lowest or the highest price: the extremes in hospital price files are chargemaster artefacts, not prices anyone pays.

What hospitals charge, from cheapest to most expensive

Cash price percentiles, outpatient, across 1,135 hospitals. Each figure is a price a hospital filed. 10th: one in ten hospitals charges less; 25th: a quarter charge less; Median: half charge less; 75th: three quarters charge less; 90th: nine in ten charge less.
10th25thMedian75th90th
$49$83$163$287$552

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($49 vs $552).

How the prices are spread

$31 – $44: 46 hospitals$31$44 – $63: 72 hospitals$63 – $89: 137 hospitals$63$89 – $127: 137 hospitals$127 – $179: 179 hospitals$127$179 – $255: 161 hospitals$255 – $361: 140 hospitals$255$361 – $512: 79 hospitals$512 – $726: 57 hospitals$512$726 – $1,030: 17 hospitals$726median $163price bands are equal on a log scale
Hospitals per price band (1,025 of 1,135 — the bands cover the 5th to 95th percentile)
FromToHospitals
$31$4446
$44$6372
$63$89137
$89$127137
$127$179179
$179$255161
$255$361140
$361$51279
$512$72657
$726$1,03017

By state

The median cash price in each state, against the national median of $163.

Alaska: 2 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 5 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 1 hospital filed a usable price — fewer than 10, so no figureVTNew Hampshire: median $108 across 11 hospitalsNH$108Washington: median $188 across 20 hospitalsWA$188Idaho: median $214 across 13 hospitalsID$214Montana: 5 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 6 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $125 across 22 hospitalsMN$125Illinois: median $144 across 49 hospitalsIL$144Wisconsin: median $156 across 40 hospitalsWI$156Michigan: median $177 across 51 hospitalsMI$177New York: median $117 across 20 hospitalsNY$117Massachusetts: 8 hospitals filed a usable price — fewer than 10, so no figureMAOregon: median $128 across 18 hospitalsOR$128Nevada: 5 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 6 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 6 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $131 across 17 hospitalsIA$131Indiana: median $148 across 47 hospitalsIN$148Ohio: median $136 across 60 hospitalsOH$136Pennsylvania: median $191 across 65 hospitalsPA$191New Jersey: median $172 across 15 hospitalsNJ$172Connecticut: median $163 across 10 hospitalsCT$163Rhode Island: 1 hospital filed a usable price — fewer than 10, so no figureRICalifornia: median $269 across 109 hospitalsCA$269Utah: 4 hospitals filed a usable price — fewer than 10, so no figureUTColorado: median $149 across 33 hospitalsCO$149Nebraska: median $70 across 10 hospitalsNE$70Missouri: median $184 across 25 hospitalsMO$184Kentucky: median $291 across 23 hospitalsKY$291West Virginia: median $92 across 10 hospitalsWV$92Virginia: median $83 across 29 hospitalsVA$83Maryland: median $42 across 12 hospitalsMD$42Delaware: 1 hospital filed a usable price — fewer than 10, so no figureDEArizona: median $244 across 23 hospitalsAZ$244New Mexico: 2 hospitals filed a usable price — fewer than 10, so no figureNMKansas: 7 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 9 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $78 across 23 hospitalsTN$78North Carolina: median $179 across 34 hospitalsNC$179South Carolina: median $165 across 29 hospitalsSC$165Oklahoma: median $83 across 23 hospitalsOK$83Louisiana: median $147 across 12 hospitalsLA$147Mississippi: 9 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: 7 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $248 across 53 hospitalsGA$248Hawaii: 1 hospital filed a usable price — fewer than 10, so no figureHITexas: median $265 across 75 hospitalsTX$265Florida: median $179 across 69 hospitalsFL$179
Cash price by state, most expensive first. National median $163. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Kentucky KY23$291+78%$77 – $1,184
California CA109$269+65%$88 – $403
Texas TX75$265+62%$98 – $637
Georgia GA53$248+52%$87 – $286
Arizona AZ23$244+50%$87 – $373
Idaho ID13$214+31%$176 – $2,118
Pennsylvania PA65$191+17%$24 – $264
Washington WA20$188+15%$102 – $345
Missouri MO25$184+13%$72 – $231
North Carolina NC34$179+10%$93 – $287
Florida FL69$179+10%$65 – $689
Michigan MI51$177+8%$73 – $337
New Jersey NJ15$172+5%$14 – $320
South Carolina SC29$165+1%$152 – $283
Connecticut CT10$1630%$101 – $163
Wisconsin WI40$156−4%$88 – $192
Colorado CO33$149−9%$77 – $246
Indiana IN47$148−9%$57 – $249
Louisiana LA12$147−10%$36 – $267
Illinois IL49$144−12%$74 – $319
Ohio OH60$136−16%$95 – $320
Iowa IA17$131−20%$74 – $240
Oregon OR18$128−22%$97 – $379
Minnesota MN22$125−23%$54 – $171
New York NY20$117−28%$60 – $405
New Hampshire NH11$108−34%$38 – $135
West Virginia WV10$92−44%$76 – $311
Virginia VA29$83−49%$51 – $168
Oklahoma OK23$83−49%$63 – $266
Tennessee TN23$78−52%$46 – $138
Nebraska NE10$70−57%$58 – $360
Maryland MD12$42−74%$31 – $57
Arkansas AR9not enough hospitals filed a usable price
Mississippi MS9not enough hospitals filed a usable price
Massachusetts MA8not enough hospitals filed a usable price
Alabama AL7not enough hospitals filed a usable price
Kansas KS7not enough hospitals filed a usable price
North Dakota ND6not enough hospitals filed a usable price
South Dakota SD6not enough hospitals filed a usable price
Wyoming WY6not enough hospitals filed a usable price
Maine ME5not enough hospitals filed a usable price
Montana MT5not enough hospitals filed a usable price
Nevada NV5not enough hospitals filed a usable price
Utah UT4not enough hospitals filed a usable price
Alaska AK2not enough hospitals filed a usable price
New Mexico NM2not enough hospitals filed a usable price
Delaware DE1not enough hospitals filed a usable price
Hawaii HI1not enough hospitals filed a usable price
Rhode Island RI1not enough hospitals filed a usable price
Vermont VT1not enough hospitals filed a usable price

Hospitals like yours

The same distribution cut by the kind of hospital. Hospital type and ownership come from CMS; a hospital counts as part of a system when its price file is shared with at least one other hospital under the same brand. The national median is $163.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care996$163$70 – $320
Children’s37$123$95 – $439
Critical access98$176$116 – $373
Ownership
For-profit140$231$77 – $605
Government120$161$71 – $424
Non-profit871$159$72 – $303
System affiliation
Part of a system1,008$165$74 – $320
Independent127$154$63 – $413

Cash price vs list price

Median list price (chargemaster)$289
Median cash price$163
Cash as a share of list, median hospital60%

At the typical hospital, asking for the cash price cuts the list price by about 40%. The share is the median of each hospital’s own cash ÷ list ratio, over hospitals that filed both — not the ratio of the two medians above.

The same procedure, inpatient

902 hospitals filed a usable inpatient cash price for this code. The median is $165 and the average of the middle 60% is $176; most fall between $74 and $337.

Cash price percentiles, inpatient, across 902 hospitals. Each figure is a price a hospital filed. 10th: one in ten hospitals charges less; 25th: a quarter charge less; Median: half charge less; 75th: three quarters charge less; 90th: nine in ten charge less.
10th25thMedian75th90th
$53$87$165$287$530

The most expensive tenth of hospitals charges at least 10.0× what the cheapest tenth charges ($53 vs $530).

Of the 957 hospitals that filed this code inpatient, 902 gave a usable cash price; 18 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 37 a list price only.

How complete is this

1,135 of the 3,956 hospitals with a price file in our corpus (29%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 1,226 hospitals that filed this code at all gave us
Usable cash price — counted1,135
Cash price carrying a plausibility flag — shown on the compare tool, excluded here26
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded1
An estimate rather than a filed cash price — excluded1
A list price only, no cash figure — excluded63
Hospitals that filed this code1,226

Sections not shown for this setting

  • Against Medicare: Medicare has no separately payable national outpatient (OPPS) rate for this code, so there is nothing honest to compare against.
  • Since our last snapshot: there is no earlier snapshot at least 90 days older than this one yet.

We last checked these hospitals’ price files for changes between September 4, 2026 and September 25, 2026; the figures were computed September 25, 2026 from filings loaded through September 25, 2026. The percentiles and averages use only the “counted” row.

Related procedures

Part of the Other diagnostic nervous system procedures family.

Hospitals file this code under descriptions such as Ionm 1 on 1 in or W/Attendance Each 15 Minutes.

Method

Source
The machine-readable price files every U.S. hospital is required by CMS to publish, parsed per hospital. Nothing is surveyed, sampled or modelled.
What counts
One cash (self-pay) price per hospital for this code and setting. A hospital’s own filing can rule its number out — a placeholder, a “not applicable” note, a list price standing in for cash — and our plausibility checks can flag a price far below what every other hospital files. Both kinds are disclosed above and excluded from the statistics; on the compare tool a flagged price is still shown.
Statistics
Percentiles are discrete: each is a price some hospital filed. The average is the mean of the prices between the 20th and 80th percentiles. We never publish the plain mean, the minimum or the maximum. A state needs 10 hospitals and a segment 20 to show a figure; otherwise the row shows its count and no number. Medicare is the national unadjusted OPPS rate where one exists.
Names
Procedure names on these pages are our own plain-language titles, not the AMA’s copyrighted CPT descriptors. The code is the identity.

The full rules — sources, statistics, thresholds, limitations — are on the methodology page.

Download this page’s figures: JSON · CSV. Aggregates only — the per-hospital prices are on the compare tool.

Cite: HospitalRates.com, “Nerve monitoring during surgery, per 15 minutes (CPT 95940) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-95940-nerve-monitoring-during-surgery-per-15-minutes