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Procedure price report · Other gastrointestinal diagnostic procedures

Esophagus reflux test with impedance probe, over 1 hour

CPT 91038the billing code this page is about

The same nose-placed impedance recording of reflux, run longer than one hour and up to 24 hours; includes interpretation and report.

Hospitals typically charge $1,017 cash for this outpatient procedure — the median across 969 hospitals that filed a usable cash price; the average of the middle 60% is $1,083. Most fall between $492 and $1,952 (20th–80th percentile).

Hospitals
969
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 969 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
$303$584$1,017$1,673$2,738

The most expensive tenth of hospitals charges at least 9.0× what the cheapest tenth charges ($303 vs $2,738).

How the prices are spread

$109 – $154: 26 hospitals$109$154 – $219: 16 hospitals$219 – $311: 17 hospitals$219$311 – $442: 56 hospitals$442 – $629: 127 hospitals$442$629 – $894: 145 hospitals$894 – $1,270: 132 hospitals$894$1,270 – $1,805: 197 hospitals$1,805 – $2,564: 98 hospitals$1,805$2,564 – $3,644: 64 hospitals$2,564median $1,017price bands are equal on a log scale
Hospitals per price band (878 of 969 — the bands cover the 5th to 95th percentile)
FromToHospitals
$109$15426
$154$21916
$219$31117
$311$44256
$442$629127
$629$894145
$894$1,270132
$1,270$1,805197
$1,805$2,56498
$2,564$3,64464

Against Medicare

Medicare pays (OPPS 2026, national rate)$381
Median cash price$1,017
Cash as a multiple of Medicare2.7×

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 $1,017.

Alaska: 1 hospital filed a usable price — fewer than 10, so no figureAKMaine: 3 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 2 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 6 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $801 across 21 hospitalsWA$801Idaho: median $1,475 across 11 hospitalsID$1,475Montana: 3 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 4 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $740 across 25 hospitalsMN$740Illinois: median $1,017 across 30 hospitalsIL$1,017Wisconsin: median $1,390 across 42 hospitalsWI$1,390Michigan: median $513 across 42 hospitalsMI$513New York: median $628 across 37 hospitalsNY$628Massachusetts: median $1,267 across 19 hospitalsMA$1,267Oregon: median $99 across 10 hospitalsOR$99Nevada: 5 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 4 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $563 across 19 hospitalsIA$563Indiana: median $1,048 across 31 hospitalsIN$1,048Ohio: median $1,232 across 48 hospitalsOH$1,232Pennsylvania: median $654 across 44 hospitalsPA$654New Jersey: median $580 across 33 hospitalsNJ$580Connecticut: median $1,120 across 10 hospitalsCT$1,120Rhode Island: 5 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $1,456 across 68 hospitalsCA$1,456Utah: median $1,673 across 24 hospitalsUT$1,673Colorado: median $1,801 across 24 hospitalsCO$1,801Nebraska: 6 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: median $920 across 14 hospitalsMO$920Kentucky: median $631 across 18 hospitalsKY$631West Virginia: 5 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: median $1,032 across 15 hospitalsVA$1,032Maryland: 4 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: 1 hospital filed a usable price — fewer than 10, so no figureDEArizona: 8 hospitals filed a usable price — fewer than 10, so no figureAZNew Mexico: median $584 across 10 hospitalsNM$584Kansas: 8 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 6 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $482 across 10 hospitalsTN$482North Carolina: median $986 across 23 hospitalsNC$986South Carolina: median $2,505 across 30 hospitalsSC$2,505Oklahoma: median $481 across 17 hospitalsOK$481Louisiana: median $340 across 20 hospitalsLA$340Mississippi: median $760 across 11 hospitalsMS$760Alabama: 8 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $2,323 across 40 hospitalsGA$2,323Hawaii: 2 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $1,478 across 86 hospitalsTX$1,478Florida: median $1,983 across 53 hospitalsFL$1,983
Cash price by state, most expensive first. National median $1,017. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
South Carolina SC30$2,505+146%$956 – $2,978
Georgia GA40$2,323+128%$604 – $2,487
Florida FL53$1,983+95%$646 – $2,738
Colorado CO24$1,801+77%$1,222 – $2,263
Utah UT24$1,673+65%$1,673 – $1,673
Texas TX86$1,478+45%$763 – $1,544
Idaho ID11$1,475+45%$645 – $1,475
California CA68$1,456+43%$611 – $2,548
Wisconsin WI42$1,390+37%$853 – $1,917
Massachusetts MA19$1,267+25%$869 – $3,644
Ohio OH48$1,232+21%$612 – $3,085
Connecticut CT10$1,120+10%$1,090 – $2,097
Indiana IN31$1,048+3%$401 – $1,540
Virginia VA15$1,032+1%$877 – $3,699
Illinois IL30$1,0170%$323 – $2,176
North Carolina NC23$986−3%$532 – $986
Missouri MO14$920−9%$683 – $1,190
Washington WA21$801−21%$415 – $1,616
Mississippi MS11$760−25%$496 – $760
Minnesota MN25$740−27%$589 – $755
Pennsylvania PA44$654−36%$441 – $1,549
Kentucky KY18$631−38%$458 – $2,131
New York NY37$628−38%$381 – $1,056
New Mexico NM10$584−43%$462 – $1,575
New Jersey NJ33$580−43%$328 – $1,138
Iowa IA19$563−45%$130 – $1,252
Michigan MI42$513−50%$68 – $1,509
Tennessee TN10$482−53%$329 – $972
Oklahoma OK17$481−53%$109 – $819
Louisiana LA20$340−67%$230 – $484
Oregon OR10$99−90%$99 – $2,164
Alabama AL8not enough hospitals filed a usable price
Arizona AZ8not enough hospitals filed a usable price
Kansas KS8not enough hospitals filed a usable price
Arkansas AR6not enough hospitals filed a usable price
Nebraska NE6not enough hospitals filed a usable price
New Hampshire NH6not enough hospitals filed a usable price
Nevada NV5not enough hospitals filed a usable price
Rhode Island RI5not enough hospitals filed a usable price
West Virginia WV5not enough hospitals filed a usable price
Maryland MD4not enough hospitals filed a usable price
North Dakota ND4not enough hospitals filed a usable price
Wyoming WY4not enough hospitals filed a usable price
Maine ME3not enough hospitals filed a usable price
Montana MT3not enough hospitals filed a usable price
South Dakota SD3not enough hospitals filed a usable price
Hawaii HI2not enough hospitals filed a usable price
Vermont VT2not enough hospitals filed a usable price
Alaska AK1not enough hospitals filed a usable price
Delaware DE1not 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 $1,017.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care830$986$492 – $1,917
Children’s38$1,480$449 – $4,866
Critical access95$1,332$604 – $1,673
Ownership
For-profit101$1,224$566 – $2,414
Government123$980$532 – $1,616
Non-profit739$1,048$466 – $1,895
System affiliation
Part of a system855$1,055$502 – $1,983
Independent114$896$446 – $1,487

Cash price vs list price

Median list price (chargemaster)$1,909
Median cash price$1,017
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

712 hospitals filed a usable inpatient cash price for this code. The median is $1,252 and the average of the middle 60% is $1,213; most fall between $572 and $2,018.

Cash price percentiles, inpatient, across 712 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
$311$646$1,252$1,733$2,738

The most expensive tenth of hospitals charges at least 8.8× what the cheapest tenth charges ($311 vs $2,738).

Of the 755 hospitals that filed this code inpatient, 712 gave a usable cash price; 23 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 20 a list price only.

How complete is this

969 of the 3,956 hospitals with a price file in our corpus (24%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 1,028 hospitals that filed this code at all gave us
Usable cash price — counted969
Cash price carrying a plausibility flag — shown on the compare tool, excluded here38
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded21
Hospitals that filed this code1,028

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 Esophgl Funcj G-Esop Rflx Impd Eltrd Prolng.

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, “Esophagus reflux test with impedance probe, over 1 hour (CPT 91038) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-91038-esophagus-reflux-test-with-impedance-probe-over-1-hour