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Procedure price report · Laboratory - Chemistry and Hematology

Thrombin clotting time test

CPT 85670the billing code this page is about

A blood test measuring how long plasma takes to clot after thrombin is added, reflecting the final step of clot formation.

Hospitals typically charge $40 cash for this outpatient procedure — the median across 3,043 hospitals that filed a usable cash price; the average of the middle 60% is $42. Most fall between $16 and $78 (20th–80th percentile).

Hospitals
3,043
States
50
Filings dated
Aug 2022 – 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 3,043 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$19$40$71$116

The most expensive tenth of hospitals charges at least 12× what the cheapest tenth charges ($10 vs $116).

How the prices are spread

$7 – $9: 119 hospitals$7$9 – $13: 220 hospitals$13 – $18: 254 hospitals$13$18 – $26: 313 hospitals$26 – $36: 369 hospitals$26$36 – $50: 391 hospitals$50 – $70: 462 hospitals$50$70 – $98: 338 hospitals$98 – $137: 196 hospitals$98$137 – $192: 84 hospitals$137median $40price bands are equal on a log scale
Hospitals per price band (2,746 of 3,043 — the bands cover the 5th to 95th percentile)
FromToHospitals
$7$9119
$9$13220
$13$18254
$18$26313
$26$36369
$36$50391
$50$70462
$70$98338
$98$137196
$137$19284

By state

The median cash price in each state, against the national median of $40.

Alaska: median $39 across 14 hospitalsAK$39Maine: median $34 across 26 hospitalsME$34Vermont: median $40 across 14 hospitalsVT$40New Hampshire: median $34 across 23 hospitalsNH$34Washington: median $46 across 71 hospitalsWA$46Idaho: median $31 across 20 hospitalsID$31Montana: median $44 across 28 hospitalsMT$44North Dakota: median $32 across 25 hospitalsND$32Minnesota: median $43 across 95 hospitalsMN$43Illinois: median $48 across 127 hospitalsIL$48Wisconsin: median $50 across 100 hospitalsWI$50Michigan: median $14 across 92 hospitalsMI$14New York: median $20 across 112 hospitalsNY$20Massachusetts: median $36 across 49 hospitalsMA$36Oregon: median $40 across 45 hospitalsOR$40Nevada: median $30 across 17 hospitalsNV$30Wyoming: median $36 across 14 hospitalsWY$36South Dakota: median $58 across 18 hospitalsSD$58Iowa: median $34 across 74 hospitalsIA$34Indiana: median $35 across 97 hospitalsIN$35Ohio: median $26 across 136 hospitalsOH$26Pennsylvania: median $32 across 118 hospitalsPA$32New Jersey: median $7 across 54 hospitalsNJ$7Connecticut: median $32 across 23 hospitalsCT$32Rhode Island: 9 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $38 across 146 hospitalsCA$38Utah: median $96 across 37 hospitalsUT$96Colorado: median $42 across 65 hospitalsCO$42Nebraska: median $54 across 68 hospitalsNE$54Missouri: median $46 across 72 hospitalsMO$46Kentucky: median $69 across 66 hospitalsKY$69West Virginia: median $36 across 40 hospitalsWV$36Virginia: median $54 across 70 hospitalsVA$54Maryland: median $27 across 41 hospitalsMD$27Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $59 across 39 hospitalsAZ$59New Mexico: median $63 across 21 hospitalsNM$63Kansas: median $61 across 68 hospitalsKS$61Arkansas: median $44 across 25 hospitalsAR$44Tennessee: median $25 across 75 hospitalsTN$25North Carolina: median $31 across 79 hospitalsNC$31South Carolina: median $58 across 50 hospitalsSC$58Oklahoma: median $43 across 66 hospitalsOK$43Louisiana: median $24 across 47 hospitalsLA$24Mississippi: median $22 across 47 hospitalsMS$22Alabama: median $45 across 39 hospitalsAL$45Georgia: median $41 across 93 hospitalsGA$41Hawaii: median $38 across 17 hospitalsHI$38Texas: median $53 across 222 hospitalsTX$53Florida: median $23 across 142 hospitalsFL$23
Cash price by state, most expensive first. National median $40. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Utah UT37$96+143%$52 – $113
Kentucky KY66$69+73%$19 – $81
New Mexico NM21$63+59%$34 – $71
Kansas KS68$61+54%$31 – $104
Arizona AZ39$59+48%$24 – $226
South Dakota SD18$58+46%$23 – $108
South Carolina SC50$58+46%$18 – $70
Nebraska NE68$54+37%$19 – $102
Virginia VA70$54+35%$22 – $65
Texas TX222$53+35%$22 – $120
Wisconsin WI100$50+26%$29 – $77
Illinois IL127$48+22%$28 – $106
Washington WA71$46+17%$25 – $90
Missouri MO72$46+15%$17 – $67
Alabama AL39$45+13%$18 – $141
Montana MT28$44+11%$17 – $73
Arkansas AR25$44+10%$10 – $59
Oklahoma OK66$43+8%$18 – $65
Minnesota MN95$43+7%$31 – $70
Colorado CO65$42+5%$16 – $88
Georgia GA93$41+4%$16 – $74
Oregon OR45$40+2%$16 – $51
Vermont VT14$40+1%$23 – $70
Alaska AK14$39−1%$13 – $113
California CA146$38−4%$12 – $58
Hawaii HI17$38−5%$15 – $70
West Virginia WV40$36−8%$21 – $74
Massachusetts MA49$36−9%$16 – $77
Wyoming WY14$36−9%$11 – $54
Indiana IN97$35−12%$14 – $80
Iowa IA74$34−15%$27 – $71
Maine ME26$34−15%$22 – $104
New Hampshire NH23$34−15%$19 – $84
Pennsylvania PA118$32−19%$9 – $86
Connecticut CT23$32−20%$23 – $51
North Dakota ND25$32−20%$10 – $47
Idaho ID20$31−21%$19 – $65
North Carolina NC79$31−22%$11 – $78
Nevada NV17$30−24%$12 – $100
Maryland MD41$27−31%$21 – $33
Ohio OH136$26−34%$16 – $86
Tennessee TN75$25−38%$10 – $62
Louisiana LA47$24−39%$10 – $63
Florida FL142$23−43%$9 – $68
Mississippi MS47$22−44%$12 – $60
New York NY112$20−49%$12 – $85
Michigan MI92$14−64%$9 – $39
New Jersey NJ54$7−83%$6 – $27
Rhode Island RI9not 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 $40.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care2,195$37$14 – $77
Children’s64$50$29 – $98
Critical access775$43$19 – $78
Ownership
For-profit429$56$19 – $226
Government517$42$17 – $77
Non-profit2,088$36$14 – $73
System affiliation
Part of a system2,511$40$15 – $77
Independent532$40$17 – $79

Cash price vs list price

Median list price (chargemaster)$66
Median cash price$40
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

2,083 hospitals filed a usable inpatient cash price for this code. The median is $39 and the average of the middle 60% is $41; most fall between $16 and $75.

Cash price percentiles, inpatient, across 2,083 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
$11$20$39$66$102

The most expensive tenth of hospitals charges at least 9.2× what the cheapest tenth charges ($11 vs $102).

Of the 2,296 hospitals that filed this code inpatient, 2,083 gave a usable cash price; 111 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 102 a list price only.

How complete is this

3,043 of the 3,956 hospitals with a price file in our corpus (77%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 3,314 hospitals that filed this code at all gave us
Usable cash price — counted3,043
Cash price carrying a plausibility flag — shown on the compare tool, excluded here148
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 — excluded122
Hospitals that filed this code3,314

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 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 Thrombin Time, Plasma.

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, “Thrombin clotting time test (CPT 85670) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-85670-thrombin-clotting-time-test