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Procedure price report · Other gastrointestinal diagnostic procedures

Acid reflux test with a capsule attached to the lining

CPT 91035the billing code this page is about

A small pH-sensing capsule is clipped to the lining of the esophagus and wirelessly records acid levels over one or more days; includes interpretation and report.

Hospitals typically charge $1,342 cash for this outpatient procedure — the median across 1,607 hospitals that filed a usable cash price; the average of the middle 60% is $1,344. Most fall between $606 and $2,440 (20th–80th percentile).

Hospitals
1,607
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 1,607 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
$344$691$1,342$2,119$3,750

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($344 vs $3,750).

How the prices are spread

$164 – $232: 46 hospitals$164$232 – $327: 29 hospitals$327 – $461: 70 hospitals$327$461 – $650: 153 hospitals$650 – $918: 197 hospitals$650$918 – $1,295: 212 hospitals$1,295 – $1,827: 302 hospitals$1,295$1,827 – $2,578: 233 hospitals$2,578 – $3,637: 117 hospitals$2,578$3,637 – $5,132: 88 hospitals$3,637median $1,342price bands are equal on a log scale
Hospitals per price band (1,447 of 1,607 — the bands cover the 5th to 95th percentile)
FromToHospitals
$164$23246
$232$32729
$327$46170
$461$650153
$650$918197
$918$1,295212
$1,295$1,827302
$1,827$2,578233
$2,578$3,637117
$3,637$5,13288

Against Medicare

Medicare pays (OPPS 2026, national rate)$877
Median cash price$1,342
Cash as a multiple of Medicare1.53×

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 $1,342.

Alaska: 3 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 8 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 3 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: median $997 across 14 hospitalsNH$997Washington: median $809 across 26 hospitalsWA$809Idaho: median $1,449 across 12 hospitalsID$1,449Montana: 7 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 7 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $777 across 62 hospitalsMN$777Illinois: median $888 across 57 hospitalsIL$888Wisconsin: median $1,443 across 75 hospitalsWI$1,443Michigan: median $1,025 across 49 hospitalsMI$1,025New York: median $844 across 54 hospitalsNY$844Massachusetts: median $1,705 across 27 hospitalsMA$1,705Oregon: median $884 across 20 hospitalsOR$884Nevada: 7 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 5 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 9 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $1,268 across 23 hospitalsIA$1,268Indiana: median $1,176 across 40 hospitalsIN$1,176Ohio: median $1,685 across 95 hospitalsOH$1,685Pennsylvania: median $1,109 across 67 hospitalsPA$1,109New Jersey: median $696 across 43 hospitalsNJ$696Connecticut: median $1,266 across 15 hospitalsCT$1,266Rhode Island: 7 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $2,423 across 110 hospitalsCA$2,423Utah: median $1,806 across 31 hospitalsUT$1,806Colorado: median $1,672 across 33 hospitalsCO$1,672Nebraska: median $982 across 12 hospitalsNE$982Missouri: median $1,156 across 38 hospitalsMO$1,156Kentucky: median $631 across 30 hospitalsKY$631West Virginia: median $449 across 19 hospitalsWV$449Virginia: median $979 across 24 hospitalsVA$979Maryland: 3 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: 5 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $919 across 39 hospitalsAZ$919New Mexico: median $733 across 10 hospitalsNM$733Kansas: median $730 across 21 hospitalsKS$730Arkansas: 7 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $709 across 40 hospitalsTN$709North Carolina: median $944 across 40 hospitalsNC$944South Carolina: median $1,494 across 31 hospitalsSC$1,494Oklahoma: median $867 across 20 hospitalsOK$867Louisiana: median $620 across 25 hospitalsLA$620Mississippi: median $435 across 16 hospitalsMS$435Alabama: median $918 across 29 hospitalsAL$918Georgia: median $2,560 across 57 hospitalsGA$2,560Hawaii: 8 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $1,887 across 128 hospitalsTX$1,887Florida: median $2,119 across 96 hospitalsFL$2,119
Cash price by state, most expensive first. National median $1,342. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Georgia GA57$2,560+91%$614 – $4,862
California CA110$2,423+81%$883 – $3,041
Florida FL96$2,119+58%$1,114 – $4,618
Texas TX128$1,887+41%$1,128 – $2,161
Utah UT31$1,806+35%$1,510 – $1,888
Massachusetts MA27$1,705+27%$969 – $2,147
Ohio OH95$1,685+25%$1,369 – $3,698
Colorado CO33$1,672+25%$1,165 – $2,500
South Carolina SC31$1,494+11%$927 – $2,635
Idaho ID12$1,449+8%$657 – $1,475
Wisconsin WI75$1,443+7%$853 – $1,761
Iowa IA23$1,268−6%$190 – $2,066
Connecticut CT15$1,266−6%$898 – $1,981
Indiana IN40$1,176−12%$587 – $1,538
Missouri MO38$1,156−14%$831 – $1,991
Pennsylvania PA67$1,109−17%$654 – $3,850
Michigan MI49$1,025−24%$99 – $1,712
New Hampshire NH14$997−26%$100 – $3,360
Nebraska NE12$982−27%$722 – $1,268
Virginia VA24$979−27%$351 – $5,738
North Carolina NC40$944−30%$614 – $1,446
Arizona AZ39$919−32%$606 – $5,953
Alabama AL29$918−32%$390 – $1,878
Illinois IL57$888−34%$366 – $2,625
Oregon OR20$884−34%$146 – $1,675
Oklahoma OK20$867−35%$741 – $1,913
New York NY54$844−37%$628 – $1,517
Washington WA26$809−40%$447 – $1,686
Minnesota MN62$777−42%$407 – $1,378
New Mexico NM10$733−45%$675 – $1,319
Kansas KS21$730−46%$173 – $1,595
Tennessee TN40$709−47%$227 – $1,654
New Jersey NJ43$696−48%$394 – $2,058
Kentucky KY30$631−53%$458 – $2,131
Louisiana LA25$620−54%$401 – $1,024
West Virginia WV19$449−67%$96 – $1,603
Mississippi MS16$435−68%$384 – $634
South Dakota SD9not enough hospitals filed a usable price
Hawaii HI8not enough hospitals filed a usable price
Maine ME8not enough hospitals filed a usable price
Arkansas AR7not enough hospitals filed a usable price
Montana MT7not enough hospitals filed a usable price
North Dakota ND7not enough hospitals filed a usable price
Nevada NV7not enough hospitals filed a usable price
Rhode Island RI7not enough hospitals filed a usable price
Delaware DE5not enough hospitals filed a usable price
Wyoming WY5not enough hospitals filed a usable price
Alaska AK3not enough hospitals filed a usable price
Maryland MD3not enough hospitals filed a usable price
Vermont VT3not 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 $1,342.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,356$1,359$622 – $2,556
Children’s29$1,599$575 – $4,021
Critical access217$1,075$246 – $1,732
Ownership
For-profit232$1,887$709 – $4,279
Government206$1,054$492 – $1,991
Non-profit1,164$1,307$596 – $2,147
System affiliation
Part of a system1,410$1,414$614 – $2,550
Independent197$1,050$471 – $1,739

Cash price vs list price

Median list price (chargemaster)$2,220
Median cash price$1,342
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

1,142 hospitals filed a usable inpatient cash price for this code. The median is $1,443 and the average of the middle 60% is $1,411; most fall between $617 and $2,342.

Cash price percentiles, inpatient, across 1,142 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
$397$752$1,443$2,105$3,157

The most expensive tenth of hospitals charges at least 8.0× what the cheapest tenth charges ($397 vs $3,157).

Of the 1,213 hospitals that filed this code inpatient, 1,142 gave a usable cash price; 24 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 47 a list price only.

How complete is this

1,607 of the 3,956 hospitals with a price file in our corpus (41%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 1,715 hospitals that filed this code at all gave us
Usable cash price — counted1,607
Cash price carrying a plausibility flag — shown on the compare tool, excluded here47
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded5
A list price only, no cash figure — excluded56
Hospitals that filed this code1,715

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 Gastroesophag Reflx Test W/Telemtry Ph Eltrd.

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, “Acid reflux test with a capsule attached to the lining (CPT 91035) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-91035-acid-reflux-test-with-a-capsule-attached-to-the-lining