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Procedure price report · Other OR therapeutic procedures on nose, mouth and pharynx

Frontal sinus filling with tissue flap, scalp incision

CPT 31085the billing code this page is about

Surgery that strips the frontal sinus lining and fills the cavity using a tissue flap, reached through an incision across the top of the scalp.

Hospitals typically charge $4,066 cash for this outpatient procedure — the median across 255 hospitals that filed a usable cash price; the average of the middle 60% is $4,270. Most fall between $2,040 and $7,402 (20th–80th percentile).

Hospitals
255
States
39
Filings dated
Jun 2024 – Sep 2026
Computed
September 25, 2026
Prices checked
through September 23, 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 255 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
$1,618$2,198$4,066$7,000$11,934

The most expensive tenth of hospitals charges at least 7.4× what the cheapest tenth charges ($1,618 vs $11,934).

How the prices are spread

$937 – $1,210: 7 hospitals$937$1,210 – $1,562: 6 hospitals$1,562 – $2,018: 21 hospitals$1,562$2,018 – $2,607: 44 hospitals$2,607 – $3,367: 21 hospitals$2,607$3,367 – $4,348: 23 hospitals$4,348 – $5,616: 30 hospitals$4,348$5,616 – $7,254: 36 hospitals$7,254 – $9,369: 17 hospitals$7,254$9,369 – $12,101: 26 hospitals$9,369median $4,066price bands are equal on a log scale
Hospitals per price band (231 of 255 — the bands cover the 5th to 95th percentile)
FromToHospitals
$937$1,2107
$1,210$1,5626
$1,562$2,01821
$2,018$2,60744
$2,607$3,36721
$3,367$4,34823
$4,348$5,61630
$5,616$7,25436
$7,254$9,36917
$9,369$12,10126

Against Medicare

Medicare pays (OPPS 2026, national rate)$6,048
Median cash price$4,066
Cash as a multiple of Medicare0.67×

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 $4,066.

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: 4 hospitals filed a usable price — fewer than 10, so no figureNHWashington: 2 hospitals filed a usable price — fewer than 10, so no figureWAIdaho: 7 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 2 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 1 hospital filed a usable price — fewer than 10, so no figureNDMinnesota: 5 hospitals filed a usable price — fewer than 10, so no figureMNIllinois: median $2,268 across 11 hospitalsIL$2,268Wisconsin: 2 hospitals filed a usable price — fewer than 10, so no figureWIMichigan: median $2,198 across 11 hospitalsMI$2,198New York: median $7,000 across 24 hospitalsNY$7,000Massachusetts: no hospital in the corpus filed a usable priceMAOregon: median $2,270 across 10 hospitalsOR$2,270Nevada: 2 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 1 hospital filed a usable price — fewer than 10, so no figureWYSouth Dakota: no hospital in the corpus filed a usable priceSDIowa: median $2,993 across 14 hospitalsIA$2,993Indiana: 4 hospitals filed a usable price — fewer than 10, so no figureINOhio: median $4,066 across 11 hospitalsOH$4,066Pennsylvania: median $794 across 18 hospitalsPA$794New Jersey: median $6,311 across 22 hospitalsNJ$6,311Connecticut: no hospital in the corpus filed a usable priceCTRhode Island: no hospital in the corpus filed a usable priceRICalifornia: median $11,934 across 25 hospitalsCA$11,934Utah: no hospital in the corpus filed a usable priceUTColorado: 2 hospitals filed a usable price — fewer than 10, so no figureCONebraska: 3 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: 2 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: 4 hospitals filed a usable price — fewer than 10, so no figureKYWest Virginia: 3 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: no hospital in the corpus filed a usable priceVAMaryland: 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: 1 hospital filed a usable price — fewer than 10, so no figureNMKansas: 3 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 1 hospital filed a usable price — fewer than 10, so no figureARTennessee: 6 hospitals filed a usable price — fewer than 10, so no figureTNNorth Carolina: 1 hospital filed a usable price — fewer than 10, so no figureNCSouth Carolina: 3 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: median $2,040 across 12 hospitalsOK$2,040Louisiana: 8 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: no hospital in the corpus filed a usable priceMSAlabama: 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 $5,290 across 18 hospitalsTX$5,290Florida: 4 hospitals filed a usable price — fewer than 10, so no figureFL
Cash price by state, most expensive first. National median $4,066. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
California CA25$11,934+193%$3,655 – $11,934
New York NY24$7,000+72%$3,544 – $7,027
New Jersey NJ22$6,311+55%$4,881 – $6,553
Texas TX18$5,290+30%$5,290 – $5,290
Ohio OH11$4,0660%$2,588 – $4,614
Iowa IA14$2,993−26%$2,993 – $2,993
Oregon OR10$2,270−44%$2,270 – $2,389
Illinois IL11$2,268−44%$1,639 – $5,020
Michigan MI11$2,198−46%$2,198 – $8,140
Oklahoma OK12$2,040−50%$2,040 – $2,040
Pennsylvania PA18$794−80%$277 – $10,001
Louisiana LA8not enough hospitals filed a usable price
Idaho ID7not enough hospitals filed a usable price
Tennessee TN6not enough hospitals filed a usable price
Minnesota MN5not enough hospitals filed a usable price
Florida FL4not enough hospitals filed a usable price
Indiana IN4not enough hospitals filed a usable price
Kentucky KY4not enough hospitals filed a usable price
New Hampshire NH4not enough hospitals filed a usable price
Alabama AL3not enough hospitals filed a usable price
Kansas KS3not enough hospitals filed a usable price
Nebraska NE3not enough hospitals filed a usable price
South Carolina SC3not enough hospitals filed a usable price
West Virginia WV3not enough hospitals filed a usable price
Colorado CO2not enough hospitals filed a usable price
Missouri MO2not enough hospitals filed a usable price
Montana MT2not enough hospitals filed a usable price
Nevada NV2not enough hospitals filed a usable price
Vermont VT2not enough hospitals filed a usable price
Washington WA2not enough hospitals filed a usable price
Wisconsin WI2not 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
Hawaii HI1not enough hospitals filed a usable price
North Carolina NC1not enough hospitals filed a usable price
North Dakota ND1not enough hospitals filed a usable price
New Mexico NM1not 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 $4,066.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care218$4,525$2,040 – $8,140
Children’s10fewer than 20 hospitals
Critical access26$2,389$1,639 – $5,290
Ownership
For-profit24$4,009$1,639 – $9,422
Government34$3,175$2,048 – $7,000
Non-profit196$4,066$2,040 – $8,140
System affiliation
Part of a system212$4,350$2,040 – $8,140
Independent43$3,205$1,856 – $6,383

Cash price vs list price

Median list price (chargemaster)$4,684
Median cash price$4,066
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

156 hospitals filed a usable inpatient cash price for this code. The median is $2,993 and the average of the middle 60% is $3,591; most fall between $1,788 and $9,422.

Cash price percentiles, inpatient, across 156 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
$1,397$2,040$2,993$5,341$11,934

The most expensive tenth of hospitals charges at least 8.5× what the cheapest tenth charges ($1,397 vs $11,934).

Of the 167 hospitals that filed this code inpatient, 156 gave a usable cash price; 9 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

255 of the 3,956 hospitals with a price file in our corpus (6%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 281 hospitals that filed this code at all gave us
Usable cash price — counted255
Cash price carrying a plausibility flag — shown on the compare tool, excluded here23
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 code281

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 23, 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 Other OR therapeutic procedures on nose, mouth and pharynx family.

Hospitals file this code under descriptions such as Sinusot Frnt Oblit W/Ostpl Flap Coronal Inc.

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, “Frontal sinus filling with tissue flap, scalp incision (CPT 31085) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-31085-frontal-sinus-filling-with-tissue-flap-scalp-incision