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Procedure price report · Laboratory - Chemistry and Hematology

Hemoglobin oxygen affinity test

CPT 82820the billing code this page is about

Laboratory test of how tightly hemoglobin holds oxygen, reported as the oxygen pressure at which hemoglobin is half saturated, with pH.

Hospitals typically charge $76 cash for this outpatient procedure — the median across 740 hospitals that filed a usable cash price; the average of the middle 60% is $86. Most fall between $23 and $236 (20th–80th percentile).

Hospitals
740
States
48
Filings dated
Aug 2022 – 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 740 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
$15$32$76$167$454

The most expensive tenth of hospitals charges at least 30× what the cheapest tenth charges ($15 vs $454).

How the prices are spread

$13 – $20: 98 hospitals$13$20 – $30: 53 hospitals$30 – $45: 104 hospitals$30$45 – $67: 65 hospitals$67 – $101: 105 hospitals$67$101 – $151: 98 hospitals$151 – $227: 39 hospitals$151$227 – $340: 44 hospitals$340 – $509: 40 hospitals$340$509 – $763: 32 hospitals$509median $76price bands are equal on a log scale
Hospitals per price band (678 of 740 — the bands cover the 5th to 95th percentile)
FromToHospitals
$13$2098
$20$3053
$30$45104
$45$6765
$67$101105
$101$15198
$151$22739
$227$34044
$340$50940
$509$76332

By state

The median cash price in each state, against the national median of $76.

Alaska: 2 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 5 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 2 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 6 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $22 across 11 hospitalsWA$22Idaho: 1 hospital filed a usable price — fewer than 10, so no figureIDMontana: 3 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 5 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $316 across 10 hospitalsMN$316Illinois: median $274 across 37 hospitalsIL$274Wisconsin: median $41 across 11 hospitalsWI$41Michigan: median $54 across 32 hospitalsMI$54New York: median $14 across 24 hospitalsNY$14Massachusetts: median $112 across 18 hospitalsMA$112Oregon: median $352 across 10 hospitalsOR$352Nevada: 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 $34 across 17 hospitalsIA$34Indiana: median $27 across 22 hospitalsIN$27Ohio: median $128 across 32 hospitalsOH$128Pennsylvania: median $15 across 28 hospitalsPA$15New Jersey: median $15 across 27 hospitalsNJ$15Connecticut: 6 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 2 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $95 across 47 hospitalsCA$95Utah: 1 hospital filed a usable price — fewer than 10, so no figureUTColorado: median $569 across 19 hospitalsCO$569Nebraska: no hospital in the corpus filed a usable priceNEMissouri: median $80 across 19 hospitalsMO$80Kentucky: median $99 across 23 hospitalsKY$99West Virginia: 7 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: median $34 across 22 hospitalsVA$34Maryland: median $82 across 20 hospitalsMD$82Delaware: 3 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $454 across 11 hospitalsAZ$454New Mexico: 2 hospitals filed a usable price — fewer than 10, so no figureNMKansas: 7 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 5 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $18 across 19 hospitalsTN$18North Carolina: median $67 across 15 hospitalsNC$67South Carolina: median $133 across 23 hospitalsSC$133Oklahoma: median $24 across 16 hospitalsOK$24Louisiana: median $46 across 21 hospitalsLA$46Mississippi: median $39 across 11 hospitalsMS$39Alabama: 3 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $44 across 36 hospitalsGA$44Hawaii: 4 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $92 across 65 hospitalsTX$92Florida: median $267 across 27 hospitalsFL$267
Cash price by state, most expensive first. National median $76. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Colorado CO19$569+648%$362 – $1,004
Arizona AZ11$454+497%$362 – $454
Oregon OR10$352+363%$54 – $352
Minnesota MN10$316+316%$178 – $316
Illinois IL37$274+261%$34 – $527
Florida FL27$267+251%$91 – $757
South Carolina SC23$133+75%$76 – $204
Ohio OH32$128+68%$65 – $192
Massachusetts MA18$112+47%$38 – $392
Kentucky KY23$99+31%$40 – $1,925
California CA47$95+25%$83 – $123
Texas TX65$92+20%$70 – $118
Maryland MD20$82+8%$52 – $99
Missouri MO19$80+6%$36 – $133
North Carolina NC15$67−12%$35 – $67
Michigan MI32$54−28%$18 – $73
Louisiana LA21$46−40%$24 – $166
Georgia GA36$44−42%$32 – $81
Wisconsin WI11$41−46%$41 – $67
Mississippi MS11$39−49%$22 – $62
Virginia VA22$34−56%$18 – $189
Iowa IA17$34−56%$34 – $135
Indiana IN22$27−65%$20 – $325
Oklahoma OK16$24−69%$24 – $24
Washington WA11$22−71%$22 – $59
Tennessee TN19$18−77%$17 – $104
Pennsylvania PA28$15−80%$9 – $46
New Jersey NJ27$15−81%$13 – $15
New York NY24$14−82%$13 – $107
Kansas KS7not enough hospitals filed a usable price
West Virginia WV7not enough hospitals filed a usable price
Connecticut CT6not enough hospitals filed a usable price
New Hampshire NH6not enough hospitals filed a usable price
Arkansas AR5not enough hospitals filed a usable price
Maine ME5not enough hospitals filed a usable price
North Dakota ND5not enough hospitals filed a usable price
Hawaii HI4not enough hospitals filed a usable price
Alabama AL3not enough hospitals filed a usable price
Delaware DE3not enough hospitals filed a usable price
Montana MT3not enough hospitals filed a usable price
Alaska AK2not enough hospitals filed a usable price
New Mexico NM2not enough hospitals filed a usable price
Nevada NV2not enough hospitals filed a usable price
Rhode Island RI2not enough hospitals filed a usable price
Vermont VT2not enough hospitals filed a usable price
Idaho ID1not 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 $76.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care629$80$22 – $236
Children’s23$128$70 – $272
Critical access85$56$27 – $196
Ownership
For-profit86$89$28 – $305
Government69$62$18 – $241
Non-profit582$80$24 – $220
System affiliation
Part of a system658$73$23 – $227
Independent82$95$28 – $298

Cash price vs list price

Median list price (chargemaster)$149
Median cash price$76
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

502 hospitals filed a usable inpatient cash price for this code. The median is $89 and the average of the middle 60% is $90; most fall between $34 and $211.

Cash price percentiles, inpatient, across 502 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
$20$40$89$138$405

The most expensive tenth of hospitals charges at least 20× what the cheapest tenth charges ($20 vs $405).

Of the 551 hospitals that filed this code inpatient, 502 gave a usable cash price; 25 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 24 a list price only.

How complete is this

740 of the 3,956 hospitals with a price file in our corpus (19%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 787 hospitals that filed this code at all gave us
Usable cash price — counted740
Cash price carrying a plausibility flag — shown on the compare tool, excluded here22
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 — excluded24
Hospitals that filed this code787

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

Related procedures

Part of the Laboratory - Chemistry and Hematology family.

Hospitals file this code under descriptions such as HEMOGLOBIN-OXYGEN AFFINITY.

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, “Hemoglobin oxygen affinity test (CPT 82820) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-82820-hemoglobin-oxygen-affinity-test