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Procedure price report · Other gastrointestinal diagnostic procedures

Unlisted digestive system diagnostic test

CPT 91299the billing code this page is about

Used when a diagnostic gastrointestinal test has no specific billing code of its own; the record must describe what was actually done.

Hospitals typically charge $433 cash for this outpatient procedure — the median across 495 hospitals that filed a usable cash price; the average of the middle 60% is $500. Most fall between $173 and $1,171 (20th–80th percentile).

Hospitals
495
States
45
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 495 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
$140$186$433$940$1,908

The most expensive tenth of hospitals charges at least 14× what the cheapest tenth charges ($140 vs $1,908).

How the prices are spread

$114 – $155: 45 hospitals$114$155 – $211: 80 hospitals$211 – $287: 37 hospitals$211$287 – $390: 48 hospitals$390 – $530: 32 hospitals$390$530 – $722: 70 hospitals$722 – $982: 41 hospitals$722$982 – $1,335: 26 hospitals$1,335 – $1,816: 38 hospitals$1,335$1,816 – $2,471: 35 hospitals$1,816median $433price bands are equal on a log scale
Hospitals per price band (452 of 495 — the bands cover the 5th to 95th percentile)
FromToHospitals
$114$15545
$155$21180
$211$28737
$287$39048
$390$53032
$530$72270
$722$98241
$982$1,33526
$1,335$1,81638
$1,816$2,47135

Against Medicare

Medicare pays (OPPS 2026, national rate)$131
Median cash price$433
Cash as a multiple of Medicare3.3×

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 $433.

Alaska: 1 hospital filed a usable price — fewer than 10, so no figureAKMaine: 2 hospitals filed a usable price — fewer than 10, so no figureMEVermont: no hospital in the corpus filed a usable priceVTNew Hampshire: 1 hospital filed a usable price — fewer than 10, so no figureNHWashington: median $433 across 11 hospitalsWA$433Idaho: 1 hospital filed a usable price — fewer than 10, so no figureIDMontana: no hospital in the corpus filed a usable priceMTNorth Dakota: 4 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $1,538 across 13 hospitalsMN$1,538Illinois: median $1,478 across 20 hospitalsIL$1,478Wisconsin: median $834 across 25 hospitalsWI$834Michigan: median $260 across 14 hospitalsMI$260New York: median $185 across 24 hospitalsNY$185Massachusetts: 6 hospitals filed a usable price — fewer than 10, so no figureMAOregon: no hospital in the corpus filed a usable priceORNevada: 3 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 1 hospital filed a usable price — fewer than 10, so no figureWYSouth Dakota: 2 hospitals filed a usable price — fewer than 10, so no figureSDIowa: 4 hospitals filed a usable price — fewer than 10, so no figureIAIndiana: median $199 across 23 hospitalsIN$199Ohio: median $427 across 39 hospitalsOH$427Pennsylvania: median $247 across 27 hospitalsPA$247New Jersey: median $182 across 20 hospitalsNJ$182Connecticut: no hospital in the corpus filed a usable priceCTRhode Island: 2 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $666 across 36 hospitalsCA$666Utah: 1 hospital filed a usable price — fewer than 10, so no figureUTColorado: 6 hospitals filed a usable price — fewer than 10, so no figureCONebraska: 8 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: median $206 across 24 hospitalsMO$206Kentucky: median $174 across 16 hospitalsKY$174West Virginia: 7 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: median $390 across 13 hospitalsVA$390Maryland: 3 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: 3 hospitals filed a usable price — fewer than 10, so no figureDEArizona: 5 hospitals filed a usable price — fewer than 10, so no figureAZNew Mexico: 7 hospitals filed a usable price — fewer than 10, so no figureNMKansas: 6 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 2 hospitals filed a usable price — fewer than 10, so no figureARTennessee: 2 hospitals filed a usable price — fewer than 10, so no figureTNNorth Carolina: 9 hospitals filed a usable price — fewer than 10, so no figureNCSouth Carolina: median $1,378 across 22 hospitalsSC$1,378Oklahoma: 6 hospitals filed a usable price — fewer than 10, so no figureOKLouisiana: 9 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: 5 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: no hospital in the corpus filed a usable priceALGeorgia: 9 hospitals filed a usable price — fewer than 10, so no figureGAHawaii: 2 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $635 across 24 hospitalsTX$635Florida: median $1,400 across 27 hospitalsFL$1,400
Cash price by state, most expensive first. National median $433. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Minnesota MN13$1,538+255%$778 – $1,538
Illinois IL20$1,478+241%$206 – $1,908
Florida FL27$1,400+223%$421 – $2,403
South Carolina SC22$1,378+218%$727 – $1,378
Wisconsin WI25$834+93%$257 – $940
California CA36$666+54%$666 – $797
Texas TX24$635+47%$442 – $1,088
Washington WA11$4330%$203 – $726
Ohio OH39$427−1%$311 – $2,471
Virginia VA13$390−10%$275 – $390
Michigan MI14$260−40%$177 – $637
Pennsylvania PA27$247−43%$152 – $613
Missouri MO24$206−52%$137 – $483
Indiana IN23$199−54%$140 – $1,422
New York NY24$185−57%$153 – $355
New Jersey NJ20$182−58%$171 – $209
Kentucky KY16$174−60%$149 – $628
Georgia GA9not enough hospitals filed a usable price
Louisiana LA9not enough hospitals filed a usable price
North Carolina NC9not enough hospitals filed a usable price
Nebraska NE8not enough hospitals filed a usable price
New Mexico NM7not enough hospitals filed a usable price
West Virginia WV7not enough hospitals filed a usable price
Colorado CO6not enough hospitals filed a usable price
Kansas KS6not enough hospitals filed a usable price
Massachusetts MA6not enough hospitals filed a usable price
Oklahoma OK6not enough hospitals filed a usable price
Arizona AZ5not enough hospitals filed a usable price
Mississippi MS5not enough hospitals filed a usable price
Iowa IA4not enough hospitals filed a usable price
North Dakota ND4not enough hospitals filed a usable price
Delaware DE3not enough hospitals filed a usable price
Maryland MD3not enough hospitals filed a usable price
Nevada NV3not enough hospitals filed a usable price
Arkansas AR2not enough hospitals filed a usable price
Hawaii HI2not enough hospitals filed a usable price
Maine ME2not enough hospitals filed a usable price
Rhode Island RI2not enough hospitals filed a usable price
South Dakota SD2not enough hospitals filed a usable price
Tennessee TN2not enough hospitals filed a usable price
Alaska AK1not enough hospitals filed a usable price
Idaho ID1not enough hospitals filed a usable price
New Hampshire NH1not enough hospitals filed a usable price
Utah UT1not enough hospitals filed a usable price
Wyoming WY1not 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 $433.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care433$454$173 – $1,209
Children’s12fewer than 20 hospitals
Critical access46$271$186 – $1,049
Ownership
For-profit46$548$218 – $1,375
Government60$407$164 – $1,014
Non-profit385$427$173 – $1,171
System affiliation
Part of a system437$427$173 – $1,219
Independent58$509$176 – $926

Cash price vs list price

Median list price (chargemaster)$805
Median cash price$433
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

331 hospitals filed a usable inpatient cash price for this code. The median is $628 and the average of the middle 60% is $608; most fall between $220 and $1,250.

Cash price percentiles, inpatient, across 331 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
$158$262$628$1,049$2,337

The most expensive tenth of hospitals charges at least 15× what the cheapest tenth charges ($158 vs $2,337).

Of the 349 hospitals that filed this code inpatient, 331 gave a usable cash price; 8 carried a plausibility flag, 1 filed a number their own filing marks as not a price, 0 gave an estimate, and 9 a list price only.

How complete is this

495 of the 3,956 hospitals with a price file in our corpus (13%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 517 hospitals that filed this code at all gave us
Usable cash price — counted495
Cash price carrying a plausibility flag — shown on the compare tool, excluded here12
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 — excluded9
Hospitals that filed this code517

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 Unlisted Diagnostic Gastroenterology Procedure.

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, “Unlisted digestive system diagnostic test (CPT 91299) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-91299-unlisted-digestive-system-diagnostic-test