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Procedure price report

Hyperbaric oxygen treatment in a chamber, per 30 minutes

HCPCS G0277the billing code this page is about

Breathing oxygen under increased pressure inside a full-body chamber; one unit covers each 30-minute interval of treatment, so a full session is usually billed as several units.

Hospitals typically charge $530 cash for this outpatient procedure — the median across 291 hospitals that filed a usable cash price; the average of the middle 60% is $531. Most fall between $269 and $736 (20th–80th percentile).

Hospitals
291
States
40
Filings dated
Jun 2024 – 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 291 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
$189$335$530$717$887

The most expensive tenth of hospitals charges at least 4.7× what the cheapest tenth charges ($189 vs $887).

How the prices are spread

$162 – $198: 17 hospitals$162$198 – $242: 9 hospitals$242 – $296: 24 hospitals$242$296 – $362: 17 hospitals$362 – $443: 28 hospitals$362$443 – $542: 38 hospitals$542 – $664: 54 hospitals$542$664 – $812: 43 hospitals$812 – $993: 28 hospitals$812$993 – $1,216: 7 hospitals$993median $530price bands are equal on a log scale
Hospitals per price band (265 of 291 — the bands cover the 5th to 95th percentile)
FromToHospitals
$162$19817
$198$2429
$242$29624
$296$36217
$362$44328
$443$54238
$542$66454
$664$81243
$812$99328
$993$1,2167

Against Medicare

Medicare pays (OPPS 2026, national rate)$141
Median cash price$530
Cash as a multiple of Medicare3.8×

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 $530.

Alaska: no hospital in the corpus filed a usable priceAKMaine: 1 hospital filed a usable price — fewer than 10, so no figureMEVermont: no hospital in the corpus filed a usable priceVTNew Hampshire: 3 hospitals filed a usable price — fewer than 10, so no figureNHWashington: 2 hospitals filed a usable price — fewer than 10, so no figureWAIdaho: 4 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 3 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 1 hospital filed a usable price — fewer than 10, so no figureNDMinnesota: 2 hospitals filed a usable price — fewer than 10, so no figureMNIllinois: 1 hospital filed a usable price — fewer than 10, so no figureILWisconsin: no hospital in the corpus filed a usable priceWIMichigan: 8 hospitals filed a usable price — fewer than 10, so no figureMINew York: median $681 across 24 hospitalsNY$681Massachusetts: 7 hospitals filed a usable price — fewer than 10, so no figureMAOregon: 4 hospitals filed a usable price — fewer than 10, so no figureORNevada: no hospital in the corpus filed a usable priceNVWyoming: no hospital in the corpus filed a usable priceWYSouth Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureSDIowa: 3 hospitals filed a usable price — fewer than 10, so no figureIAIndiana: median $582 across 23 hospitalsIN$582Ohio: median $659 across 17 hospitalsOH$659Pennsylvania: median $1,001 across 17 hospitalsPA$1,001New Jersey: median $693 across 10 hospitalsNJ$693Connecticut: 5 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 1 hospital filed a usable price — fewer than 10, so no figureRICalifornia: median $424 across 12 hospitalsCA$424Utah: median $503 across 22 hospitalsUT$503Colorado: no hospital in the corpus filed a usable priceCONebraska: no hospital in the corpus filed a usable priceNEMissouri: 8 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: median $322 across 14 hospitalsVA$322Maryland: 1 hospital filed a usable price — fewer than 10, so no figureMDDelaware: 1 hospital filed a usable price — fewer than 10, so no figureDEArizona: 2 hospitals 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: no hospital in the corpus filed a usable priceARTennessee: median $178 across 16 hospitalsTN$178North Carolina: 4 hospitals filed a usable price — fewer than 10, so no figureNCSouth Carolina: 4 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: 3 hospitals filed a usable price — fewer than 10, so no figureOKLouisiana: 2 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: 3 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: 1 hospital filed a usable price — fewer than 10, so no figureALGeorgia: no hospital in the corpus filed a usable priceGAHawaii: no hospital in the corpus filed a usable priceHITexas: median $717 across 32 hospitalsTX$717Florida: median $626 across 17 hospitalsFL$626
Cash price by state, most expensive first. National median $530. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Pennsylvania PA17$1,001+89%$250 – $1,595
Texas TX32$717+35%$640 – $826
New Jersey NJ10$693+31%$189 – $736
New York NY24$681+28%$340 – $681
Ohio OH17$659+24%$552 – $792
Florida FL17$626+18%$247 – $626
Indiana IN23$582+10%$445 – $653
Utah UT22$503−5%$503 – $503
California CA12$424−20%$382 – $652
Virginia VA14$322−39%$259 – $901
Tennessee TN16$178−66%$178 – $309
Michigan MI8not enough hospitals filed a usable price
Missouri MO8not enough hospitals filed a usable price
Massachusetts MA7not enough hospitals filed a usable price
Connecticut CT5not enough hospitals filed a usable price
Idaho ID4not enough hospitals filed a usable price
Kentucky KY4not enough hospitals filed a usable price
North Carolina NC4not enough hospitals filed a usable price
Oregon OR4not enough hospitals filed a usable price
South Carolina SC4not enough hospitals filed a usable price
Iowa IA3not enough hospitals filed a usable price
Mississippi MS3not enough hospitals filed a usable price
Montana MT3not enough hospitals filed a usable price
New Hampshire NH3not enough hospitals filed a usable price
Oklahoma OK3not enough hospitals filed a usable price
South Dakota SD3not enough hospitals filed a usable price
West Virginia WV3not enough hospitals filed a usable price
Arizona AZ2not enough hospitals filed a usable price
Louisiana LA2not enough hospitals filed a usable price
Minnesota MN2not enough hospitals filed a usable price
New Mexico NM2not enough hospitals filed a usable price
Washington WA2not enough hospitals filed a usable price
Alabama AL1not enough hospitals filed a usable price
Delaware DE1not enough hospitals filed a usable price
Illinois IL1not enough hospitals filed a usable price
Kansas KS1not enough hospitals filed a usable price
Maryland MD1not enough hospitals filed a usable price
Maine ME1not enough hospitals filed a usable price
North Dakota ND1not enough hospitals filed a usable price
Rhode Island RI1not 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 $530.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care263$507$263 – $736
Children’s1fewer than 20 hospitals
Critical access26$552$503 – $804
Ownership
For-profit41$309$178 – $717
Government29$247$178 – $634
Non-profit220$582$365 – $780
System affiliation
Part of a system261$556$296 – $743
Independent30$365$173 – $645

Cash price vs list price

Median list price (chargemaster)$948
Median cash price$530
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

218 hospitals filed a usable inpatient cash price for this code. The median is $503 and the average of the middle 60% is $535; most fall between $269 and $792.

Cash price percentiles, inpatient, across 218 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
$178$340$503$717$889

The most expensive tenth of hospitals charges at least 5.0× what the cheapest tenth charges ($178 vs $889).

Of the 229 hospitals that filed this code inpatient, 218 gave a usable cash price; 3 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 8 a list price only.

How complete is this

291 of the 3,956 hospitals with a price file in our corpus (7%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 303 hospitals that filed this code at all gave us
Usable cash price — counted291
Cash price carrying a plausibility flag — shown on the compare tool, excluded here4
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 — excluded8
Hospitals that filed this code303

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.

Hospitals file this code under descriptions such as HC Hbot, Full Body Chamber, 30m - Elective.

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, “Hyperbaric oxygen treatment in a chamber, per 30 minutes (CPT G0277) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-g0277-hyperbaric-oxygen-treatment-in-a-chamber-per-30-minutes