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Procedure price report · Laboratory - Chemistry and Hematology

Blood test for antithrombin amount

CPT 85301the billing code this page is about

A blood test that measures the quantity of antithrombin protein in the blood, as opposed to how well it functions. Billed once per test.

Hospitals typically charge $69 cash for this outpatient procedure — the median across 2,503 hospitals that filed a usable cash price; the average of the middle 60% is $78. Most fall between $26 and $158 (20th–80th percentile).

Hospitals
2,503
States
50
Filings dated
Dec 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 2,503 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
$17$31$69$140$248

The most expensive tenth of hospitals charges at least 15× what the cheapest tenth charges ($17 vs $248).

How the prices are spread

$12 – $17: 131 hospitals$12$17 – $24: 222 hospitals$24 – $34: 219 hospitals$24$34 – $48: 249 hospitals$48 – $67: 287 hospitals$48$67 – $95: 261 hospitals$95 – $134: 348 hospitals$95$134 – $189: 289 hospitals$189 – $267: 146 hospitals$189$267 – $377: 103 hospitals$267median $69price bands are equal on a log scale
Hospitals per price band (2,255 of 2,503 — the bands cover the 5th to 95th percentile)
FromToHospitals
$12$17131
$17$24222
$24$34219
$34$48249
$48$67287
$67$95261
$95$134348
$134$189289
$189$267146
$267$377103

By state

The median cash price in each state, against the national median of $69.

Alaska: median $85 across 14 hospitalsAK$85Maine: 4 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 3 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: median $54 across 15 hospitalsNH$54Washington: median $86 across 59 hospitalsWA$86Idaho: median $46 across 16 hospitalsID$46Montana: median $151 across 24 hospitalsMT$151North Dakota: median $71 across 25 hospitalsND$71Minnesota: median $122 across 69 hospitalsMN$122Illinois: median $120 across 113 hospitalsIL$120Wisconsin: median $97 across 86 hospitalsWI$97Michigan: median $43 across 66 hospitalsMI$43New York: median $28 across 90 hospitalsNY$28Massachusetts: median $67 across 47 hospitalsMA$67Oregon: median $56 across 21 hospitalsOR$56Nevada: median $55 across 20 hospitalsNV$55Wyoming: median $78 across 15 hospitalsWY$78South Dakota: median $168 across 21 hospitalsSD$168Iowa: median $82 across 65 hospitalsIA$82Indiana: median $80 across 90 hospitalsIN$80Ohio: median $62 across 117 hospitalsOH$62Pennsylvania: median $72 across 93 hospitalsPA$72New Jersey: median $12 across 51 hospitalsNJ$12Connecticut: median $47 across 12 hospitalsCT$47Rhode Island: 3 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $30 across 116 hospitalsCA$30Utah: median $123 across 39 hospitalsUT$123Colorado: median $61 across 55 hospitalsCO$61Nebraska: median $172 across 47 hospitalsNE$172Missouri: median $64 across 61 hospitalsMO$64Kentucky: median $100 across 59 hospitalsKY$100West Virginia: median $35 across 26 hospitalsWV$35Virginia: median $97 across 61 hospitalsVA$97Maryland: median $47 across 35 hospitalsMD$47Delaware: 5 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $88 across 35 hospitalsAZ$88New Mexico: median $101 across 10 hospitalsNM$101Kansas: median $84 across 57 hospitalsKS$84Arkansas: median $50 across 26 hospitalsAR$50Tennessee: median $73 across 54 hospitalsTN$73North Carolina: median $79 across 68 hospitalsNC$79South Carolina: median $145 across 39 hospitalsSC$145Oklahoma: median $63 across 65 hospitalsOK$63Louisiana: median $32 across 44 hospitalsLA$32Mississippi: median $52 across 38 hospitalsMS$52Alabama: median $40 across 23 hospitalsAL$40Georgia: median $116 across 88 hospitalsGA$116Hawaii: median $73 across 11 hospitalsHI$73Texas: median $112 across 186 hospitalsTX$112Florida: median $34 across 116 hospitalsFL$34
Cash price by state, most expensive first. National median $69. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Nebraska NE47$172+149%$46 – $239
South Dakota SD21$168+143%$82 – $350
Montana MT24$151+119%$71 – $263
South Carolina SC39$145+110%$60 – $175
Utah UT39$123+78%$104 – $153
Minnesota MN69$122+77%$63 – $232
Illinois IL113$120+74%$40 – $231
Georgia GA88$116+68%$38 – $155
Texas TX186$112+62%$33 – $266
New Mexico NM10$101+46%$52 – $205
Kentucky KY59$100+45%$29 – $136
Wisconsin WI86$97+41%$44 – $149
Virginia VA61$97+40%$17 – $127
Arizona AZ35$88+27%$19 – $157
Washington WA59$86+24%$48 – $143
Alaska AK14$85+22%$23 – $166
Kansas KS57$84+22%$40 – $150
Iowa IA65$82+19%$33 – $132
Indiana IN90$80+16%$28 – $228
North Carolina NC68$79+14%$18 – $133
Wyoming WY15$78+13%$44 – $150
Tennessee TN54$73+6%$19 – $147
Hawaii HI11$73+6%$68 – $144
Pennsylvania PA93$72+3%$16 – $163
North Dakota ND25$71+3%$19 – $130
Massachusetts MA47$67−2%$32 – $145
Missouri MO61$64−8%$38 – $134
Oklahoma OK65$63−8%$26 – $104
Ohio OH117$62−10%$37 – $110
Colorado CO55$61−12%$22 – $135
Oregon OR21$56−19%$23 – $183
Nevada NV20$55−21%$31 – $133
New Hampshire NH15$54−22%$26 – $151
Mississippi MS38$52−25%$12 – $90
Arkansas AR26$50−28%$17 – $109
Connecticut CT12$47−32%$45 – $65
Maryland MD35$47−33%$36 – $54
Idaho ID16$46−34%$29 – $63
Michigan MI66$43−39%$17 – $115
Alabama AL23$40−42%$20 – $114
West Virginia WV26$35−49%$19 – $119
Florida FL116$34−51%$15 – $78
Louisiana LA44$32−53%$18 – $102
California CA116$30−57%$15 – $161
New York NY90$28−59%$14 – $117
New Jersey NJ51$12−82%$12 – $49
Delaware DE5not enough hospitals filed a usable price
Maine ME4not enough hospitals filed a usable price
Rhode Island RI3not enough hospitals filed a usable price
Vermont VT3not 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 $69.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,826$62$22 – $152
Children’s36$70$31 – $163
Critical access632$95$36 – $177
Ownership
For-profit358$80$29 – $249
Government422$75$29 – $157
Non-profit1,714$67$25 – $150
System affiliation
Part of a system2,063$69$24 – $158
Independent440$71$31 – $155

Cash price vs list price

Median list price (chargemaster)$115
Median cash price$69
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

1,750 hospitals filed a usable inpatient cash price for this code. The median is $73 and the average of the middle 60% is $81; most fall between $29 and $157.

Cash price percentiles, inpatient, across 1,750 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$33$73$145$232

The most expensive tenth of hospitals charges at least 12× what the cheapest tenth charges ($20 vs $232).

Of the 1,935 hospitals that filed this code inpatient, 1,750 gave a usable cash price; 96 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 89 a list price only.

How complete is this

2,503 of the 3,956 hospitals with a price file in our corpus (63%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 2,745 hospitals that filed this code at all gave us
Usable cash price — counted2,503
Cash price carrying a plausibility flag — shown on the compare tool, excluded here133
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 — excluded107
Hospitals that filed this code2,745

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 July 20, 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 ANTITHROMBIN III ANTIGEN.

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 test for antithrombin amount (CPT 85301) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-85301-blood-test-for-antithrombin-amount