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Procedure price report · Diagnostic procedures on nose, mouth and pharynx

Nasal endoscopy with look inside the sphenoid sinus

CPT 31235the billing code this page is about

A scope exam of the nose that also inspects the sphenoid sinus behind the nose through its opening, for diagnosis only.

Hospitals typically charge $1,961 cash for this outpatient procedure — the median across 339 hospitals that filed a usable cash price; the average of the middle 60% is $1,764. Most fall between $463 and $3,714 (20th–80th percentile).

Hospitals
339
States
46
Filings dated
Mar 2023 – Sep 2026
Computed
September 25, 2026
Prices checked
through September 24, 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 339 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
$276$564$1,961$3,302$5,156

The most expensive tenth of hospitals charges at least 19× what the cheapest tenth charges ($276 vs $5,156).

How the prices are spread

$208 – $288: 21 hospitals$208$288 – $400: 16 hospitals$400 – $554: 28 hospitals$400$554 – $768: 32 hospitals$768 – $1,065: 16 hospitals$768$1,065 – $1,476: 10 hospitals$1,476 – $2,046: 57 hospitals$1,476$2,046 – $2,836: 43 hospitals$2,836 – $3,931: 44 hospitals$2,836$3,931 – $5,449: 48 hospitals$3,931median $1,961price bands are equal on a log scale
Hospitals per price band (315 of 339 — the bands cover the 5th to 95th percentile)
FromToHospitals
$208$28821
$288$40016
$400$55428
$554$76832
$768$1,06516
$1,065$1,47610
$1,476$2,04657
$2,046$2,83643
$2,836$3,93144
$3,931$5,44948

Against Medicare

Medicare pays (OPPS 2026, national rate)$1,818
Median cash price$1,961
Cash as a multiple of Medicare1.08×

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 $1,961.

Alaska: 1 hospital filed a usable price — fewer than 10, so no figureAKMaine: no hospital in the corpus filed a usable priceMEVermont: 2 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 3 hospitals filed a usable price — fewer than 10, so no figureNHWashington: 7 hospitals filed a usable price — fewer than 10, so no figureWAIdaho: 8 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 1 hospital filed a usable price — fewer than 10, so no figureMTNorth Dakota: 1 hospital filed a usable price — fewer than 10, so no figureNDMinnesota: 1 hospital filed a usable price — fewer than 10, so no figureMNIllinois: median $463 across 12 hospitalsIL$463Wisconsin: 8 hospitals filed a usable price — fewer than 10, so no figureWIMichigan: median $2,447 across 14 hospitalsMI$2,447New York: median $2,041 across 26 hospitalsNY$2,041Massachusetts: 2 hospitals filed a usable price — fewer than 10, so no figureMAOregon: median $564 across 10 hospitalsOR$564Nevada: 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: 6 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $733 across 15 hospitalsIA$733Indiana: 5 hospitals filed a usable price — fewer than 10, so no figureINOhio: median $5,156 across 17 hospitalsOH$5,156Pennsylvania: median $1,819 across 22 hospitalsPA$1,819New Jersey: median $3,786 across 23 hospitalsNJ$3,786Connecticut: 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 $3,448 across 40 hospitalsCA$3,448Utah: 1 hospital filed a usable price — fewer than 10, so no figureUTColorado: 2 hospitals filed a usable price — fewer than 10, so no figureCONebraska: 4 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: 7 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: 3 hospitals filed a usable price — fewer than 10, so no figureKYWest Virginia: 7 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: 4 hospitals filed a usable price — fewer than 10, so no figureVAMaryland: no hospital in the corpus filed a usable priceMDDelaware: no hospital in the corpus filed a usable priceDEArizona: 1 hospital filed a usable price — fewer than 10, so no figureAZNew Mexico: 2 hospitals filed a usable price — fewer than 10, so no figureNMKansas: 1 hospital filed a usable price — fewer than 10, so no figureKSArkansas: 1 hospital filed a usable price — fewer than 10, so no figureARTennessee: 7 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: 6 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: median $263 across 12 hospitalsOK$263Louisiana: median $1,479 across 14 hospitalsLA$1,479Mississippi: 8 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: 3 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: no hospital in the corpus filed a usable priceGAHawaii: 1 hospital filed a usable price — fewer than 10, so no figureHITexas: median $1,961 across 18 hospitalsTX$1,961Florida: 5 hospitals filed a usable price — fewer than 10, so no figureFL
Cash price by state, most expensive first. National median $1,961. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Ohio OH17$5,156+163%$723 – $5,156
New Jersey NJ23$3,786+93%$1,909 – $5,419
California CA40$3,448+76%$3,302 – $5,449
Michigan MI14$2,447+25%$228 – $3,913
New York NY26$2,041+4%$617 – $2,113
Texas TX18$1,9610%$1,961 – $2,232
Pennsylvania PA22$1,819−7%$108 – $3,249
Louisiana LA14$1,479−25%$1,018 – $2,180
Iowa IA15$733−63%$733 – $733
Oregon OR10$564−71%$564 – $1,608
Illinois IL12$463−76%$347 – $733
Oklahoma OK12$263−87%$263 – $263
Idaho ID8not enough hospitals filed a usable price
Mississippi MS8not enough hospitals filed a usable price
Wisconsin WI8not enough hospitals filed a usable price
Missouri MO7not enough hospitals filed a usable price
Tennessee TN7not enough hospitals filed a usable price
Washington WA7not enough hospitals filed a usable price
West Virginia WV7not enough hospitals filed a usable price
South Carolina SC6not enough hospitals filed a usable price
South Dakota SD6not enough hospitals filed a usable price
Florida FL5not enough hospitals filed a usable price
Indiana IN5not enough hospitals filed a usable price
Nebraska NE4not enough hospitals filed a usable price
Virginia VA4not enough hospitals filed a usable price
Alabama AL3not enough hospitals filed a usable price
Kentucky KY3not enough hospitals filed a usable price
New Hampshire NH3not enough hospitals filed a usable price
Colorado CO2not enough hospitals filed a usable price
Massachusetts MA2not enough hospitals filed a usable price
North Carolina NC2not enough hospitals filed a usable price
New Mexico NM2not enough hospitals filed a usable price
Nevada NV2not enough hospitals filed a usable price
Vermont VT2not enough hospitals filed a usable price
Wyoming WY2not enough hospitals filed a usable price
Alaska AK1not enough hospitals filed a usable price
Arkansas AR1not enough hospitals filed a usable price
Arizona AZ1not enough hospitals filed a usable price
Connecticut CT1not enough hospitals filed a usable price
Hawaii HI1not enough hospitals filed a usable price
Kansas KS1not enough hospitals filed a usable price
Minnesota MN1not enough hospitals filed a usable price
Montana MT1not enough hospitals filed a usable price
North Dakota ND1not enough hospitals filed a usable price
Rhode Island RI1not enough hospitals filed a usable price
Utah UT1not 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 $1,961.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care293$1,991$522 – $3,913
Children’s7fewer than 20 hospitals
Critical access38$890$357 – $3,572
Ownership
For-profit31$1,961$463 – $3,870
Government41$1,839$530 – $2,184
Non-profit266$1,961$483 – $3,913
System affiliation
Part of a system288$1,984$494 – $3,920
Independent51$937$315 – $2,279

Cash price vs list price

Median list price (chargemaster)$2,500
Median cash price$1,961
Cash as a share of list, median hospital58%

At the typical hospital, asking for the cash price cuts the list price by about 42%. 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

221 hospitals filed a usable inpatient cash price for this code. The median is $1,374 and the average of the middle 60% is $1,662; most fall between $383 and $3,913.

Cash price percentiles, inpatient, across 221 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
$263$463$1,374$3,302$5,156

The most expensive tenth of hospitals charges at least 20× what the cheapest tenth charges ($263 vs $5,156).

Of the 239 hospitals that filed this code inpatient, 221 gave a usable cash price; 16 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 2 a list price only.

How complete is this

339 of the 3,956 hospitals with a price file in our corpus (9%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 385 hospitals that filed this code at all gave us
Usable cash price — counted339
Cash price carrying a plausibility flag — shown on the compare tool, excluded here37
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 — excluded7
Hospitals that filed this code385

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 24, 2026; the figures were computed September 25, 2026 from filings loaded through September 23, 2026. The percentiles and averages use only the “counted” row.

Related procedures

Part of the Diagnostic procedures on nose, mouth and pharynx family.

Hospitals file this code under descriptions such as Nasal/Sinus Endoscopy Dx Sphenoid Sinusoscopy.

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, “Nasal endoscopy with look inside the sphenoid sinus (CPT 31235) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-31235-nasal-endoscopy-with-look-inside-the-sphenoid-sinus