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Procedure price report · Laboratory - Chemistry and Hematology

Prothrombin time with substituted plasma, each test

CPT 85611the billing code this page is about

A repeat clotting time run after mixing the patient's plasma with a plasma fraction to find the cause of a prolonged result; billed once per substitution tested.

Hospitals typically charge $37 cash for this outpatient procedure — the median across 2,267 hospitals that filed a usable cash price; the average of the middle 60% is $41. Most fall between $14 and $84 (20th–80th percentile).

Hospitals
2,267
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 2,267 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
$7$17$37$75$153

The most expensive tenth of hospitals charges at least 21× what the cheapest tenth charges ($7 vs $153).

How the prices are spread

$5 – $7: 111 hospitals$5$7 – $10: 116 hospitals$10 – $16: 179 hospitals$10$16 – $24: 333 hospitals$24 – $36: 288 hospitals$24$36 – $55: 325 hospitals$55 – $84: 359 hospitals$55$84 – $127: 177 hospitals$127 – $192: 116 hospitals$127$192 – $292: 59 hospitals$192median $37price bands are equal on a log scale
Hospitals per price band (2,063 of 2,267 — the bands cover the 5th to 95th percentile)
FromToHospitals
$5$7111
$7$10116
$10$16179
$16$24333
$24$36288
$36$55325
$55$84359
$84$127177
$127$192116
$192$29259

By state

The median cash price in each state, against the national median of $37.

Alaska: median $97 across 11 hospitalsAK$97Maine: median $68 across 12 hospitalsME$68Vermont: median $73 across 11 hospitalsVT$73New Hampshire: median $62 across 10 hospitalsNH$62Washington: median $25 across 57 hospitalsWA$25Idaho: median $47 across 14 hospitalsID$47Montana: median $36 across 19 hospitalsMT$36North Dakota: median $26 across 13 hospitalsND$26Minnesota: median $51 across 68 hospitalsMN$51Illinois: median $50 across 89 hospitalsIL$50Wisconsin: median $42 across 86 hospitalsWI$42Michigan: median $22 across 60 hospitalsMI$22New York: median $17 across 79 hospitalsNY$17Massachusetts: median $21 across 47 hospitalsMA$21Oregon: median $45 across 29 hospitalsOR$45Nevada: median $21 across 12 hospitalsNV$21Wyoming: median $37 across 10 hospitalsWY$37South Dakota: 8 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $49 across 47 hospitalsIA$49Indiana: median $16 across 58 hospitalsIN$16Ohio: median $38 across 116 hospitalsOH$38Pennsylvania: median $22 across 96 hospitalsPA$22New Jersey: median $5 across 48 hospitalsNJ$5Connecticut: median $21 across 13 hospitalsCT$21Rhode Island: 6 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $36 across 109 hospitalsCA$36Utah: median $72 across 30 hospitalsUT$72Colorado: median $69 across 50 hospitalsCO$69Nebraska: median $59 across 40 hospitalsNE$59Missouri: median $56 across 60 hospitalsMO$56Kentucky: median $45 across 46 hospitalsKY$45West Virginia: median $21 across 27 hospitalsWV$21Virginia: median $30 across 57 hospitalsVA$30Maryland: median $65 across 22 hospitalsMD$65Delaware: 5 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $49 across 30 hospitalsAZ$49New Mexico: 5 hospitals filed a usable price — fewer than 10, so no figureNMKansas: median $45 across 36 hospitalsKS$45Arkansas: median $39 across 22 hospitalsAR$39Tennessee: median $20 across 63 hospitalsTN$20North Carolina: median $29 across 76 hospitalsNC$29South Carolina: median $36 across 33 hospitalsSC$36Oklahoma: median $28 across 46 hospitalsOK$28Louisiana: median $13 across 37 hospitalsLA$13Mississippi: median $23 across 37 hospitalsMS$23Alabama: median $44 across 31 hospitalsAL$44Georgia: median $54 across 73 hospitalsGA$54Hawaii: median $27 across 13 hospitalsHI$27Texas: median $83 across 175 hospitalsTX$83Florida: median $36 across 125 hospitalsFL$36
Cash price by state, most expensive first. National median $37. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Alaska AK11$97+161%$20 – $171
Texas TX175$83+124%$22 – $174
Vermont VT11$73+96%$62 – $112
Utah UT30$72+94%$72 – $84
Colorado CO50$69+86%$26 – $320
Maine ME12$68+83%$59 – $148
Maryland MD22$65+76%$50 – $77
New Hampshire NH10$62+68%$33 – $152
Nebraska NE40$59+60%$28 – $135
Missouri MO60$56+51%$19 – $110
Georgia GA73$54+46%$20 – $100
Minnesota MN68$51+38%$30 – $77
Illinois IL89$50+34%$29 – $99
Iowa IA47$49+34%$27 – $127
Arizona AZ30$49+32%$16 – $157
Idaho ID14$47+26%$20 – $72
Kansas KS36$45+21%$26 – $77
Kentucky KY46$45+20%$12 – $59
Oregon OR29$45+20%$12 – $60
Alabama AL31$44+18%$16 – $163
Wisconsin WI86$42+13%$24 – $62
Arkansas AR22$39+5%$13 – $49
Ohio OH116$38+4%$18 – $84
Wyoming WY10$370%$17 – $82
Florida FL125$36−2%$17 – $299
Montana MT19$36−3%$20 – $82
South Carolina SC33$36−3%$5 – $72
California CA109$36−3%$12 – $75
Virginia VA57$30−19%$19 – $49
North Carolina NC76$29−22%$11 – $39
Oklahoma OK46$28−26%$15 – $48
Hawaii HI13$27−27%$20 – $53
North Dakota ND13$26−29%$21 – $53
Washington WA57$25−32%$11 – $40
Mississippi MS37$23−39%$16 – $49
Pennsylvania PA96$22−40%$5 – $72
Michigan MI60$22−40%$10 – $57
Connecticut CT13$21−42%$15 – $42
Massachusetts MA47$21−43%$11 – $51
Nevada NV12$21−43%$19 – $70
West Virginia WV27$21−43%$18 – $39
Tennessee TN63$20−45%$7 – $55
New York NY79$17−54%$5 – $77
Indiana IN58$16−56%$11 – $42
Louisiana LA37$13−66%$6 – $36
New Jersey NJ48$5−88%$4 – $13
South Dakota SD8not enough hospitals filed a usable price
Rhode Island RI6not enough hospitals filed a usable price
Delaware DE5not enough hospitals filed a usable price
New Mexico NM5not 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 $37.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,771$36$12 – $85
Children’s50$35$19 – $84
Critical access439$44$19 – $80
Ownership
For-profit324$61$19 – $292
Government304$34$15 – $75
Non-profit1,632$36$13 – $77
System affiliation
Part of a system1,950$37$15 – $84
Independent317$37$13 – $84

Cash price vs list price

Median list price (chargemaster)$66
Median cash price$37
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

1,614 hospitals filed a usable inpatient cash price for this code. The median is $39 and the average of the middle 60% is $42; most fall between $15 and $82.

Cash price percentiles, inpatient, across 1,614 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
$10$18$39$73$136

The most expensive tenth of hospitals charges at least 14× what the cheapest tenth charges ($10 vs $136).

Of the 1,793 hospitals that filed this code inpatient, 1,614 gave a usable cash price; 99 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 80 a list price only.

How complete is this

2,267 of the 3,956 hospitals with a price file in our corpus (57%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 2,487 hospitals that filed this code at all gave us
Usable cash price — counted2,267
Cash price carrying a plausibility flag — shown on the compare tool, excluded here126
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 — excluded92
Hospitals that filed this code2,487

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 Laboratory - Chemistry and Hematology family.

Hospitals file this code under descriptions such as HC Pt/Inr 1:1 Mix.

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, “Prothrombin time with substituted plasma, each test (CPT 85611) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-85611-prothrombin-time-with-substituted-plasma-each-test