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Procedure price report · Other gastrointestinal diagnostic procedures

Colon muscle function study, at least 6 hours of recording

CPT 91117the billing code this page is about

A catheter placed in the colon records muscle contractions continuously for a minimum of six hours, including any drug stimulation used, plus interpretation and a written report.

Hospitals typically charge $502 cash for this outpatient procedure — the median across 303 hospitals that filed a usable cash price; the average of the middle 60% is $630. Most fall between $261 and $1,250 (20th–80th percentile).

Hospitals
303
States
44
Filings dated
Nov 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 303 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
$174$276$502$1,110$2,012

The most expensive tenth of hospitals charges at least 12× what the cheapest tenth charges ($174 vs $2,012).

How the prices are spread

$100 – $140: 4 hospitals$100$140 – $196: 20 hospitals$196 – $274: 36 hospitals$196$274 – $383: 56 hospitals$383 – $535: 29 hospitals$383$535 – $748: 19 hospitals$748 – $1,046: 13 hospitals$748$1,046 – $1,463: 65 hospitals$1,463 – $2,046: 21 hospitals$1,463$2,046 – $2,862: 11 hospitals$2,046median $502price bands are equal on a log scale
Hospitals per price band (274 of 303 — the bands cover the 5th to 95th percentile)
FromToHospitals
$100$1404
$140$19620
$196$27436
$274$38356
$383$53529
$535$74819
$748$1,04613
$1,046$1,46365
$1,463$2,04621
$2,046$2,86211

Against Medicare

Medicare pays (OPPS 2026, national rate)$221
Median cash price$502
Cash as a multiple of Medicare2.3×

The Medicare figure is the national unadjusted OPPS rate for this code — what Medicare itself pays a hospital before local wage adjustment. It is a benchmark, not a price anyone is charged.

By state

The median cash price in each state, against the national median of $502.

Alaska: no hospital in the corpus filed a usable priceAKMaine: no hospital in the corpus filed a usable priceMEVermont: 1 hospital filed a usable price — fewer than 10, so no figureVTNew Hampshire: 3 hospitals filed a usable price — fewer than 10, so no figureNHWashington: 4 hospitals filed a usable price — fewer than 10, so no figureWAIdaho: 1 hospital filed a usable price — fewer than 10, so no figureIDMontana: no hospital in the corpus filed a usable priceMTNorth Dakota: no hospital in the corpus filed a usable priceNDMinnesota: 1 hospital filed a usable price — fewer than 10, so no figureMNIllinois: 9 hospitals filed a usable price — fewer than 10, so no figureILWisconsin: 1 hospital filed a usable price — fewer than 10, so no figureWIMichigan: median $297 across 11 hospitalsMI$297New York: median $369 across 22 hospitalsNY$369Massachusetts: 3 hospitals filed a usable price — fewer than 10, so no figureMAOregon: 1 hospital filed a usable price — fewer than 10, so no figureORNevada: 2 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 2 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: no hospital in the corpus filed a usable priceSDIowa: median $308 across 14 hospitalsIA$308Indiana: median $2,012 across 13 hospitalsIN$2,012Ohio: 8 hospitals filed a usable price — fewer than 10, so no figureOHPennsylvania: median $220 across 23 hospitalsPA$220New Jersey: median $345 across 12 hospitalsNJ$345Connecticut: 1 hospital filed a usable price — fewer than 10, so no figureCTRhode Island: 1 hospital filed a usable price — fewer than 10, so no figureRICalifornia: median $1,070 across 32 hospitalsCA$1,070Utah: median $1,116 across 21 hospitalsUT$1,116Colorado: 2 hospitals filed a usable price — fewer than 10, so no figureCONebraska: no hospital in the corpus filed a usable priceNEMissouri: median $820 across 10 hospitalsMO$820Kentucky: 5 hospitals filed a usable price — fewer than 10, so no figureKYWest Virginia: 2 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: 4 hospitals filed a usable price — fewer than 10, so no figureVAMaryland: 1 hospital filed a usable price — fewer than 10, so no figureMDDelaware: 1 hospital filed a usable price — fewer than 10, so no figureDEArizona: 1 hospital filed a usable price — fewer than 10, so no figureAZNew Mexico: 1 hospital filed a usable price — fewer than 10, so no figureNMKansas: 5 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 2 hospitals filed a usable price — fewer than 10, so no figureARTennessee: 8 hospitals filed a usable price — fewer than 10, so no figureTNNorth Carolina: 2 hospitals filed a usable price — fewer than 10, so no figureNCSouth Carolina: 7 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: median $261 across 12 hospitalsOK$261Louisiana: 5 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: 1 hospital filed a usable price — fewer than 10, so no figureMSAlabama: 1 hospital filed a usable price — fewer than 10, so no figureALGeorgia: 2 hospitals filed a usable price — fewer than 10, so no figureGAHawaii: 1 hospital filed a usable price — fewer than 10, so no figureHITexas: median $478 across 20 hospitalsTX$478Florida: median $1,058 across 24 hospitalsFL$1,058
Cash price by state, most expensive first. National median $502. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Indiana IN13$2,012+301%$1,745 – $2,719
Utah UT21$1,116+122%$1,057 – $1,175
California CA32$1,070+113%$891 – $1,070
Florida FL24$1,058+111%$313 – $1,427
Missouri MO10$820+63%$198 – $820
Texas TX20$478−5%$478 – $502
New York NY22$369−27%$270 – $450
New Jersey NJ12$345−31%$279 – $345
Iowa IA14$308−39%$308 – $308
Michigan MI11$297−41%$297 – $299
Oklahoma OK12$261−48%$261 – $261
Pennsylvania PA23$220−56%$87 – $848
Illinois IL9not enough hospitals filed a usable price
Ohio OH8not enough hospitals filed a usable price
Tennessee TN8not enough hospitals filed a usable price
South Carolina SC7not enough hospitals filed a usable price
Kansas KS5not enough hospitals filed a usable price
Kentucky KY5not enough hospitals filed a usable price
Louisiana LA5not enough hospitals filed a usable price
Virginia VA4not enough hospitals filed a usable price
Washington WA4not enough hospitals filed a usable price
Massachusetts MA3not enough hospitals filed a usable price
New Hampshire NH3not enough hospitals filed a usable price
Arkansas AR2not enough hospitals filed a usable price
Colorado CO2not enough hospitals filed a usable price
Georgia GA2not enough hospitals filed a usable price
North Carolina NC2not enough hospitals filed a usable price
Nevada NV2not enough hospitals filed a usable price
West Virginia WV2not enough hospitals filed a usable price
Wyoming WY2not enough hospitals filed a usable price
Alabama AL1not enough hospitals filed a usable price
Arizona AZ1not enough hospitals filed a usable price
Connecticut CT1not enough hospitals filed a usable price
Delaware DE1not enough hospitals filed a usable price
Hawaii HI1not enough hospitals filed a usable price
Idaho ID1not enough hospitals filed a usable price
Maryland MD1not enough hospitals filed a usable price
Minnesota MN1not enough hospitals filed a usable price
Mississippi MS1not enough hospitals filed a usable price
New Mexico NM1not enough hospitals filed a usable price
Oregon OR1not enough hospitals filed a usable price
Rhode Island RI1not enough hospitals filed a usable price
Vermont VT1not enough hospitals filed a usable price
Wisconsin WI1not 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 $502.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care240$390$250 – $1,070
Children’s37$1,760$583 – $3,290
Critical access26$1,057$199 – $2,023
Ownership
For-profit35$312$192 – $848
Government36$369$265 – $665
Non-profit232$635$261 – $1,351
System affiliation
Part of a system263$502$261 – $1,250
Independent40$450$241 – $1,844

Cash price vs list price

Median list price (chargemaster)$1,209
Median cash price$502
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

178 hospitals filed a usable inpatient cash price for this code. The median is $820 and the average of the middle 60% is $752; most fall between $299 and $1,187.

Cash price percentiles, inpatient, across 178 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
$198$308$820$1,116$1,427

The most expensive tenth of hospitals charges at least 7.2× what the cheapest tenth charges ($198 vs $1,427).

Of the 187 hospitals that filed this code inpatient, 178 gave a usable cash price; 7 carried a plausibility flag, 1 filed a number their own filing marks as not a price, 0 gave an estimate, and 1 a list price only.

How complete is this

303 of the 3,956 hospitals with a price file in our corpus (8%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 311 hospitals that filed this code at all gave us
Usable cash price — counted303
Cash price carrying a plausibility flag — shown on the compare tool, excluded here5
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded1
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded2
Hospitals that filed this code311

Sections not shown for this setting

  • 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 gastrointestinal diagnostic procedures family.

Hospitals file this code under descriptions such as Colon Motility Stdy Min 6 Hr Cont Record W/I&R.

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, “Colon muscle function study, at least 6 hours of recording (CPT 91117) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-91117-colon-muscle-function-study-at-least-6-hours-of-recording