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Procedure price report · Laboratory - Chemistry and Hematology

Partial thromboplastin time clotting test

CPT 85730the billing code this page is about

Measures how long plasma or whole blood takes to clot through one of the clotting pathways; billed once per specimen tested.

Hospitals typically charge $40 cash for this outpatient procedure — the median across 3,417 hospitals that filed a usable cash price; the average of the middle 60% is $43. Most fall between $15 and $84 (20th–80th percentile).

Hospitals
3,417
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 3,417 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
$9$19$40$74$136

The most expensive tenth of hospitals charges at least 16× what the cheapest tenth charges ($9 vs $136).

How the prices are spread

$6 – $9: 194 hospitals$6$9 – $12: 207 hospitals$12 – $18: 242 hospitals$12$18 – $26: 354 hospitals$26 – $37: 461 hospitals$26$37 – $53: 544 hospitals$53 – $77: 439 hospitals$53$77 – $111: 354 hospitals$111 – $159: 188 hospitals$111$159 – $229: 104 hospitals$159median $40price bands are equal on a log scale
Hospitals per price band (3,087 of 3,417 — the bands cover the 5th to 95th percentile)
FromToHospitals
$6$9194
$9$12207
$12$18242
$18$26354
$26$37461
$37$53544
$53$77439
$77$111354
$111$159188
$159$229104

By state

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

Alaska: median $70 across 19 hospitalsAK$70Maine: median $40 across 28 hospitalsME$40Vermont: median $50 across 14 hospitalsVT$50New Hampshire: median $44 across 25 hospitalsNH$44Washington: median $39 across 77 hospitalsWA$39Idaho: median $33 across 25 hospitalsID$33Montana: median $40 across 34 hospitalsMT$40North Dakota: median $35 across 34 hospitalsND$35Minnesota: median $48 across 106 hospitalsMN$48Illinois: median $65 across 142 hospitalsIL$65Wisconsin: median $50 across 107 hospitalsWI$50Michigan: median $27 across 96 hospitalsMI$27New York: median $22 across 119 hospitalsNY$22Massachusetts: median $44 across 54 hospitalsMA$44Oregon: median $43 across 51 hospitalsOR$43Nevada: median $53 across 22 hospitalsNV$53Wyoming: median $27 across 16 hospitalsWY$27South Dakota: median $117 across 41 hospitalsSD$117Iowa: median $45 across 90 hospitalsIA$45Indiana: median $39 across 96 hospitalsIN$39Ohio: median $38 across 143 hospitalsOH$38Pennsylvania: median $30 across 122 hospitalsPA$30New Jersey: median $7 across 57 hospitalsNJ$7Connecticut: median $32 across 23 hospitalsCT$32Rhode Island: median $35 across 10 hospitalsRI$35California: median $38 across 165 hospitalsCA$38Utah: median $23 across 42 hospitalsUT$23Colorado: median $52 across 72 hospitalsCO$52Nebraska: median $78 across 84 hospitalsNE$78Missouri: median $46 across 78 hospitalsMO$46Kentucky: median $75 across 69 hospitalsKY$75West Virginia: median $36 across 44 hospitalsWV$36Virginia: median $42 across 73 hospitalsVA$42Maryland: median $22 across 41 hospitalsMD$22Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $38 across 42 hospitalsAZ$38New Mexico: median $61 across 30 hospitalsNM$61Kansas: median $38 across 95 hospitalsKS$38Arkansas: median $9 across 39 hospitalsAR$9Tennessee: median $22 across 82 hospitalsTN$22North Carolina: median $42 across 87 hospitalsNC$42South Carolina: median $77 across 53 hospitalsSC$77Oklahoma: median $31 across 72 hospitalsOK$31Louisiana: median $22 across 54 hospitalsLA$22Mississippi: median $28 across 55 hospitalsMS$28Alabama: median $41 across 44 hospitalsAL$41Georgia: median $44 across 112 hospitalsGA$44Hawaii: median $30 across 20 hospitalsHI$30Texas: median $45 across 251 hospitalsTX$45Florida: median $29 across 155 hospitalsFL$29
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
South Dakota SD41$117+189%$42 – $160
Nebraska NE84$78+93%$27 – $111
South Carolina SC53$77+91%$34 – $78
Kentucky KY69$75+86%$24 – $173
Alaska AK19$70+73%$9 – $156
Illinois IL142$65+61%$30 – $100
New Mexico NM30$61+50%$24 – $82
Nevada NV22$53+30%$19 – $107
Colorado CO72$52+28%$20 – $93
Wisconsin WI107$50+24%$24 – $71
Vermont VT14$50+23%$17 – $76
Minnesota MN106$48+19%$24 – $71
Missouri MO78$46+14%$21 – $83
Iowa IA90$45+11%$30 – $67
Texas TX251$45+10%$14 – $171
Massachusetts MA54$44+9%$19 – $79
Georgia GA112$44+9%$20 – $70
New Hampshire NH25$44+8%$20 – $78
Oregon OR51$43+6%$18 – $65
Virginia VA73$42+5%$11 – $79
North Carolina NC87$42+4%$24 – $70
Alabama AL44$410%$11 – $98
Montana MT34$40−1%$14 – $72
Maine ME28$40−2%$23 – $109
Washington WA77$39−4%$21 – $74
Indiana IN96$39−4%$12 – $82
Ohio OH143$38−5%$20 – $57
Arizona AZ42$38−5%$9 – $216
Kansas KS95$38−5%$25 – $68
California CA165$38−7%$9 – $142
West Virginia WV44$36−12%$30 – $65
North Dakota ND34$35−13%$11 – $50
Rhode Island RI10$35−15%$22 – $47
Idaho ID25$33−18%$14 – $69
Connecticut CT23$32−20%$25 – $50
Oklahoma OK72$31−24%$18 – $66
Hawaii HI20$30−26%$16 – $56
Pennsylvania PA122$30−26%$9 – $96
Florida FL155$29−28%$8 – $323
Mississippi MS55$28−31%$10 – $43
Wyoming WY16$27−33%$12 – $69
Michigan MI96$27−34%$8 – $39
Utah UT42$23−43%$20 – $81
Louisiana LA54$22−45%$10 – $56
New York NY119$22−46%$8 – $69
Maryland MD41$22−46%$17 – $26
Tennessee TN82$22−46%$11 – $59
Arkansas AR39$9−77%$6 – $68
New Jersey NJ57$7−83%$7 – $34
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 care2,339$35$13 – $84
Children’s67$50$24 – $104
Critical access1,001$48$20 – $83
Ownership
For-profit481$65$19 – $249
Government654$43$18 – $76
Non-profit2,272$36$14 – $77
System affiliation
Part of a system2,751$40$15 – $86
Independent666$41$18 – $78

Cash price vs list price

Median list price (chargemaster)$68
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

2,316 hospitals filed a usable inpatient cash price for this code. The median is $38 and the average of the middle 60% is $41; most fall between $15 and $79.

Cash price percentiles, inpatient, across 2,316 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
$9$18$38$73$123

The most expensive tenth of hospitals charges at least 14× what the cheapest tenth charges ($9 vs $123).

Of the 2,552 hospitals that filed this code inpatient, 2,316 gave a usable cash price; 122 carried a plausibility flag, 1 filed a number their own filing marks as not a price, 0 gave an estimate, and 113 a list price only.

How complete is this

3,417 of the 3,956 hospitals with a price file in our corpus (86%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 3,731 hospitals that filed this code at all gave us
Usable cash price — counted3,417
Cash price carrying a plausibility flag — shown on the compare tool, excluded here174
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 — excluded138
Hospitals that filed this code3,731

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 Ptt(Aptt).

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, “Partial thromboplastin time clotting test (CPT 85730) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-85730-partial-thromboplastin-time-clotting-test