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Procedure price report · Laboratory - Chemistry and Hematology

Fetal fibronectin test in pregnancy

CPT 82731the billing code this page is about

A lab test that measures fetal fibronectin, a protein found in cervical or vaginal fluid during pregnancy.

Hospitals typically charge $360 cash for this outpatient procedure — the median across 2,538 hospitals that filed a usable cash price; the average of the middle 60% is $372. Most fall between $175 and $636 (20th–80th percentile).

Hospitals
2,538
States
50
Filings dated
Dec 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 2,538 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
$113$206$360$559$924

The most expensive tenth of hospitals charges at least 8.2× what the cheapest tenth charges ($113 vs $924).

How the prices are spread

$74 – $98: 90 hospitals$74$98 – $130: 114 hospitals$130 – $171: 173 hospitals$130$171 – $227: 235 hospitals$227 – $300: 307 hospitals$227$300 – $396: 374 hospitals$396 – $524: 388 hospitals$396$524 – $693: 287 hospitals$693 – $917: 195 hospitals$693$917 – $1,213: 133 hospitals$917median $360price bands are equal on a log scale
Hospitals per price band (2,296 of 2,538 — the bands cover the 5th to 95th percentile)
FromToHospitals
$74$9890
$98$130114
$130$171173
$171$227235
$227$300307
$300$396374
$396$524388
$524$693287
$693$917195
$917$1,213133

By state

The median cash price in each state, against the national median of $360.

Alaska: median $598 across 18 hospitalsAK$598Maine: median $337 across 22 hospitalsME$337Vermont: 8 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: median $429 across 18 hospitalsNH$429Washington: median $413 across 58 hospitalsWA$413Idaho: median $354 across 20 hospitalsID$354Montana: median $334 across 15 hospitalsMT$334North Dakota: median $355 across 15 hospitalsND$355Minnesota: median $405 across 86 hospitalsMN$405Illinois: median $421 across 103 hospitalsIL$421Wisconsin: median $398 across 93 hospitalsWI$398Michigan: median $255 across 84 hospitalsMI$255New York: median $217 across 89 hospitalsNY$217Massachusetts: median $293 across 44 hospitalsMA$293Oregon: median $377 across 44 hospitalsOR$377Nevada: median $406 across 17 hospitalsNV$406Wyoming: median $302 across 14 hospitalsWY$302South Dakota: median $482 across 14 hospitalsSD$482Iowa: median $331 across 61 hospitalsIA$331Indiana: median $312 across 84 hospitalsIN$312Ohio: median $288 across 112 hospitalsOH$288Pennsylvania: median $249 across 92 hospitalsPA$249New Jersey: median $74 across 54 hospitalsNJ$74Connecticut: median $325 across 19 hospitalsCT$325Rhode Island: 6 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $689 across 146 hospitalsCA$689Utah: median $594 across 40 hospitalsUT$594Colorado: median $443 across 58 hospitalsCO$443Nebraska: median $494 across 52 hospitalsNE$494Missouri: median $379 across 57 hospitalsMO$379Kentucky: median $320 across 32 hospitalsKY$320West Virginia: median $378 across 18 hospitalsWV$378Virginia: median $398 across 61 hospitalsVA$398Maryland: median $463 across 34 hospitalsMD$463Delaware: 6 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $454 across 33 hospitalsAZ$454New Mexico: median $319 across 19 hospitalsNM$319Kansas: median $325 across 38 hospitalsKS$325Arkansas: median $173 across 23 hospitalsAR$173Tennessee: median $197 across 66 hospitalsTN$197North Carolina: median $433 across 76 hospitalsNC$433South Carolina: median $374 across 49 hospitalsSC$374Oklahoma: median $215 across 50 hospitalsOK$215Louisiana: median $143 across 36 hospitalsLA$143Mississippi: median $176 across 40 hospitalsMS$176Alabama: median $275 across 27 hospitalsAL$275Georgia: median $219 across 77 hospitalsGA$219Hawaii: median $548 across 15 hospitalsHI$548Texas: median $548 across 183 hospitalsTX$548Florida: median $720 across 112 hospitalsFL$720
Cash price by state, most expensive first. National median $360. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Florida FL112$720+100%$228 – $1,154
California CA146$689+91%$335 – $1,093
Alaska AK18$598+66%$388 – $987
Utah UT40$594+65%$489 – $698
Hawaii HI15$548+52%$324 – $585
Texas TX183$548+52%$338 – $1,187
Nebraska NE52$494+37%$273 – $749
South Dakota SD14$482+34%$338 – $911
Maryland MD34$463+28%$312 – $561
Arizona AZ33$454+26%$185 – $1,254
Colorado CO58$443+23%$319 – $910
North Carolina NC76$433+20%$182 – $556
New Hampshire NH18$429+19%$321 – $909
Illinois IL103$421+17%$236 – $740
Washington WA58$413+15%$284 – $554
Nevada NV17$406+13%$194 – $632
Minnesota MN86$405+12%$184 – $480
Wisconsin WI93$398+10%$263 – $540
Virginia VA61$398+10%$186 – $559
Missouri MO57$379+5%$208 – $535
West Virginia WV18$378+5%$207 – $509
Oregon OR44$377+5%$260 – $472
South Carolina SC49$374+4%$271 – $618
North Dakota ND15$355−1%$321 – $452
Idaho ID20$354−2%$287 – $587
Maine ME22$337−6%$162 – $694
Montana MT15$334−7%$286 – $434
Iowa IA61$331−8%$253 – $468
Kansas KS38$325−10%$186 – $718
Connecticut CT19$325−10%$234 – $391
Kentucky KY32$320−11%$193 – $756
New Mexico NM19$319−11%$207 – $446
Indiana IN84$312−13%$114 – $575
Wyoming WY14$302−16%$125 – $663
Massachusetts MA44$293−19%$198 – $556
Ohio OH112$288−20%$163 – $361
Alabama AL27$275−24%$148 – $930
Michigan MI84$255−29%$144 – $355
Pennsylvania PA92$249−31%$74 – $475
Georgia GA77$219−39%$133 – $820
New York NY89$217−40%$65 – $501
Oklahoma OK50$215−40%$140 – $328
Tennessee TN66$197−45%$125 – $327
Mississippi MS40$176−51%$125 – $298
Arkansas AR23$173−52%$108 – $305
Louisiana LA36$143−60%$95 – $294
New Jersey NJ54$74−79%$71 – $286
Vermont VT8not enough hospitals filed a usable price
Delaware DE6not enough hospitals filed a usable price
Rhode Island RI6not 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 $360.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,961$353$163 – $690
Children’s23$489$270 – $1,142
Critical access546$379$204 – $569
Ownership
For-profit336$522$200 – $1,333
Government383$363$166 – $587
Non-profit1,811$351$173 – $587
System affiliation
Part of a system2,143$366$177 – $649
Independent395$336$166 – $585

Cash price vs list price

Median list price (chargemaster)$624
Median cash price$360
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

1,777 hospitals filed a usable inpatient cash price for this code. The median is $374 and the average of the middle 60% is $385; most fall between $193 and $619.

Cash price percentiles, inpatient, across 1,777 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
$130$221$374$556$853

The most expensive tenth of hospitals charges at least 6.6× what the cheapest tenth charges ($130 vs $853).

Of the 1,964 hospitals that filed this code inpatient, 1,777 gave a usable cash price; 107 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

2,538 of the 3,956 hospitals with a price file in our corpus (64%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 2,763 hospitals that filed this code at all gave us
Usable cash price — counted2,538
Cash price carrying a plausibility flag — shown on the compare tool, excluded here132
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded93
Hospitals that filed this code2,763

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 Fetal Fibronectin.

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, “Fetal fibronectin test in pregnancy (CPT 82731) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-82731-fetal-fibronectin-test-in-pregnancy