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Procedure price report · Arterial blood gases

Blood gas test (acidity, oxygen and carbon dioxide)

CPT 82803the billing code this page is about

Measures any combination of blood pH, carbon dioxide, oxygen and bicarbonate levels from one blood sample, usually drawn from an artery.

Hospitals typically charge $143 cash for this outpatient procedure — the median across 3,211 hospitals that filed a usable cash price; the average of the middle 60% is $151. Most fall between $64 and $284 (20th–80th percentile).

Hospitals
3,211
States
50
Filings dated
Mar 2023 – 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 3,211 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
$38$78$143$249$397

The most expensive tenth of hospitals charges at least 10× what the cheapest tenth charges ($38 vs $397).

How the prices are spread

$29 – $39: 182 hospitals$29$39 – $53: 180 hospitals$53 – $73: 212 hospitals$53$73 – $99: 384 hospitals$99 – $135: 386 hospitals$99$135 – $184: 511 hospitals$184 – $252: 415 hospitals$184$252 – $343: 362 hospitals$343 – $468: 159 hospitals$343$468 – $638: 104 hospitals$468median $143price bands are equal on a log scale
Hospitals per price band (2,895 of 3,211 — the bands cover the 5th to 95th percentile)
FromToHospitals
$29$39182
$39$53180
$53$73212
$73$99384
$99$135386
$135$184511
$184$252415
$252$343362
$343$468159
$468$638104

By state

The median cash price in each state, against the national median of $143.

Alaska: median $335 across 19 hospitalsAK$335Maine: median $114 across 28 hospitalsME$114Vermont: median $160 across 12 hospitalsVT$160New Hampshire: median $129 across 21 hospitalsNH$129Washington: median $152 across 72 hospitalsWA$152Idaho: median $117 across 24 hospitalsID$117Montana: median $119 across 32 hospitalsMT$119North Dakota: median $166 across 30 hospitalsND$166Minnesota: median $107 across 103 hospitalsMN$107Illinois: median $175 across 129 hospitalsIL$175Wisconsin: median $142 across 99 hospitalsWI$142Michigan: median $55 across 93 hospitalsMI$55New York: median $69 across 116 hospitalsNY$69Massachusetts: median $130 across 49 hospitalsMA$130Oregon: median $172 across 51 hospitalsOR$172Nevada: median $161 across 22 hospitalsNV$161Wyoming: median $151 across 15 hospitalsWY$151South Dakota: median $240 across 35 hospitalsSD$240Iowa: median $144 across 84 hospitalsIA$144Indiana: median $101 across 94 hospitalsIN$101Ohio: median $117 across 136 hospitalsOH$117Pennsylvania: median $108 across 118 hospitalsPA$108New Jersey: median $29 across 55 hospitalsNJ$29Connecticut: median $110 across 22 hospitalsCT$110Rhode Island: 8 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $368 across 155 hospitalsCA$368Utah: median $308 across 37 hospitalsUT$308Colorado: median $150 across 69 hospitalsCO$150Nebraska: median $226 across 79 hospitalsNE$226Missouri: median $135 across 74 hospitalsMO$135Kentucky: median $175 across 66 hospitalsKY$175West Virginia: median $104 across 39 hospitalsWV$104Virginia: median $145 across 72 hospitalsVA$145Maryland: median $82 across 42 hospitalsMD$82Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $234 across 42 hospitalsAZ$234New Mexico: median $165 across 27 hospitalsNM$165Kansas: median $131 across 88 hospitalsKS$131Arkansas: median $63 across 20 hospitalsAR$63Tennessee: median $89 across 74 hospitalsTN$89North Carolina: median $146 across 95 hospitalsNC$146South Carolina: median $196 across 50 hospitalsSC$196Oklahoma: median $134 across 65 hospitalsOK$134Louisiana: median $77 across 47 hospitalsLA$77Mississippi: median $102 across 55 hospitalsMS$102Alabama: median $91 across 42 hospitalsAL$91Georgia: median $100 across 103 hospitalsGA$100Hawaii: median $131 across 21 hospitalsHI$131Texas: median $260 across 229 hospitalsTX$260Florida: median $304 across 146 hospitalsFL$304
Cash price by state, most expensive first. National median $143. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
California CA155$368+157%$155 – $701
Alaska AK19$335+134%$179 – $396
Utah UT37$308+115%$229 – $362
Florida FL146$304+112%$79 – $783
Texas TX229$260+81%$108 – $497
South Dakota SD35$240+68%$183 – $319
Arizona AZ42$234+63%$80 – $817
Nebraska NE79$226+58%$136 – $287
South Carolina SC50$196+37%$129 – $249
Kentucky KY66$175+22%$78 – $221
Illinois IL129$175+22%$77 – $313
Oregon OR51$172+20%$138 – $207
North Dakota ND30$166+16%$125 – $191
New Mexico NM27$165+15%$96 – $273
Nevada NV22$161+13%$38 – $321
Vermont VT12$160+12%$96 – $285
Washington WA72$152+6%$89 – $204
Wyoming WY15$151+5%$51 – $213
Colorado CO69$150+5%$103 – $343
North Carolina NC95$146+2%$80 – $231
Virginia VA72$145+1%$108 – $276
Iowa IA84$144+1%$86 – $224
Wisconsin WI99$142−1%$83 – $161
Missouri MO74$135−6%$86 – $207
Oklahoma OK65$134−6%$56 – $161
Hawaii HI21$131−8%$66 – $202
Kansas KS88$131−9%$89 – $200
Massachusetts MA49$130−9%$73 – $253
New Hampshire NH21$129−10%$87 – $185
Montana MT32$119−17%$84 – $271
Idaho ID24$117−18%$107 – $188
Ohio OH136$117−18%$73 – $217
Maine ME28$114−20%$50 – $210
Connecticut CT22$110−23%$72 – $196
Pennsylvania PA118$108−25%$30 – $276
Minnesota MN103$107−25%$51 – $211
West Virginia WV39$104−27%$78 – $174
Mississippi MS55$102−29%$52 – $150
Indiana IN94$101−30%$52 – $219
Georgia GA103$100−30%$49 – $200
Alabama AL42$91−37%$32 – $209
Tennessee TN74$89−38%$39 – $221
Maryland MD42$82−43%$53 – $101
Louisiana LA47$77−46%$32 – $167
New York NY116$69−52%$37 – $237
Arkansas AR20$63−56%$27 – $122
Michigan MI93$55−62%$36 – $153
New Jersey NJ55$29−79%$26 – $66
Rhode Island RI8not enough hospitals filed a usable price
Delaware DE7not 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 $143.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care2,230$135$55 – $296
Children’s66$176$110 – $334
Critical access905$160$85 – $264
Ownership
For-profit455$204$82 – $655
Government585$146$64 – $246
Non-profit2,161$138$63 – $265
System affiliation
Part of a system2,621$145$64 – $288
Independent590$133$65 – $248

Cash price vs list price

Median list price (chargemaster)$244
Median cash price$143
Cash as a share of list, median hospital65%

At the typical hospital, asking for the cash price cuts the list price by about 35%. 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

2,179 hospitals filed a usable inpatient cash price for this code. The median is $146 and the average of the middle 60% is $155; most fall between $70 and $284.

Cash price percentiles, inpatient, across 2,179 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
$46$82$146$253$394

The most expensive tenth of hospitals charges at least 8.7× what the cheapest tenth charges ($46 vs $394).

Of the 2,405 hospitals that filed this code inpatient, 2,179 gave a usable cash price; 121 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 105 a list price only.

How complete is this

3,211 of the 3,956 hospitals with a price file in our corpus (81%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 3,501 hospitals that filed this code at all gave us
Usable cash price — counted3,211
Cash price carrying a plausibility flag — shown on the compare tool, excluded here162
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded1
A list price only, no cash figure — excluded127
Hospitals that filed this code3,501

Sections not shown for this setting

  • Against Medicare: Medicare has no separately payable national outpatient (OPPS) rate for this code, so there is nothing honest to compare against.
  • 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 Arterial blood gases family.

Hospitals file this code under descriptions such as HC Blood Gas, POC.

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, “Blood gas test (acidity, oxygen and carbon dioxide) (CPT 82803) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-82803-blood-gas-test-acidity-oxygen-and-carbon-dioxide