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Procedure price report · Pathology

Fragile X gene test to detect abnormal repeats

CPT 81243the billing code this page is about

Laboratory analysis of the FMR1 gene to see whether an abnormal expanded repeat region is present. Covers one test on one sample; sizing of the repeat is billed separately.

Hospitals typically charge $234 cash for this outpatient procedure — the median across 2,097 hospitals that filed a usable cash price; the average of the middle 60% is $244. Most fall between $97 and $459 (20th–80th percentile).

Hospitals
2,097
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 2,097 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
$63$118$234$411$651

The most expensive tenth of hospitals charges at least 10× what the cheapest tenth charges ($63 vs $651).

How the prices are spread

$53 – $70: 153 hospitals$53$70 – $93: 139 hospitals$93 – $122: 152 hospitals$93$122 – $162: 184 hospitals$162 – $214: 248 hospitals$162$214 – $283: 285 hospitals$283 – $373: 236 hospitals$283$373 – $493: 241 hospitals$493 – $652: 146 hospitals$493$652 – $862: 105 hospitals$652median $234price bands are equal on a log scale
Hospitals per price band (1,889 of 2,097 — the bands cover the 5th to 95th percentile)
FromToHospitals
$53$70153
$70$93139
$93$122152
$122$162184
$162$214248
$214$283285
$283$373236
$373$493241
$493$652146
$652$862105

By state

The median cash price in each state, against the national median of $234.

Alaska: 8 hospitals filed a usable price — fewer than 10, so no figureAKMaine: median $176 across 17 hospitalsME$176Vermont: median $500 across 12 hospitalsVT$500New Hampshire: median $267 across 19 hospitalsNH$267Washington: median $213 across 45 hospitalsWA$213Idaho: median $157 across 17 hospitalsID$157Montana: 9 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: median $139 across 21 hospitalsND$139Minnesota: median $262 across 67 hospitalsMN$262Illinois: median $355 across 104 hospitalsIL$355Wisconsin: median $408 across 83 hospitalsWI$408Michigan: median $159 across 70 hospitalsMI$159New York: median $140 across 102 hospitalsNY$140Massachusetts: median $190 across 40 hospitalsMA$190Oregon: median $190 across 28 hospitalsOR$190Nevada: median $172 across 11 hospitalsNV$172Wyoming: median $341 across 11 hospitalsWY$341South Dakota: median $139 across 10 hospitalsSD$139Iowa: median $144 across 37 hospitalsIA$144Indiana: median $192 across 76 hospitalsIN$192Ohio: median $273 across 110 hospitalsOH$273Pennsylvania: median $241 across 107 hospitalsPA$241New Jersey: median $66 across 51 hospitalsNJ$66Connecticut: median $202 across 13 hospitalsCT$202Rhode Island: 6 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $130 across 73 hospitalsCA$130Utah: median $181 across 33 hospitalsUT$181Colorado: median $199 across 48 hospitalsCO$199Nebraska: median $320 across 15 hospitalsNE$320Missouri: median $254 across 51 hospitalsMO$254Kentucky: median $288 across 44 hospitalsKY$288West Virginia: median $75 across 23 hospitalsWV$75Virginia: median $248 across 54 hospitalsVA$248Maryland: median $231 across 29 hospitalsMD$231Delaware: 6 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $162 across 25 hospitalsAZ$162New Mexico: median $274 across 14 hospitalsNM$274Kansas: median $297 across 26 hospitalsKS$297Arkansas: median $190 across 16 hospitalsAR$190Tennessee: median $168 across 42 hospitalsTN$168North Carolina: median $148 across 66 hospitalsNC$148South Carolina: median $431 across 33 hospitalsSC$431Oklahoma: median $235 across 41 hospitalsOK$235Louisiana: median $122 across 34 hospitalsLA$122Mississippi: median $96 across 25 hospitalsMS$96Alabama: median $190 across 18 hospitalsAL$190Georgia: median $396 across 67 hospitalsGA$396Hawaii: 8 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $327 across 141 hospitalsTX$327Florida: median $171 across 91 hospitalsFL$171
Cash price by state, most expensive first. National median $234. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Vermont VT12$500+114%$239 – $839
South Carolina SC33$431+84%$286 – $797
Wisconsin WI83$408+74%$238 – $460
Georgia GA67$396+69%$242 – $748
Illinois IL104$355+52%$173 – $675
Wyoming WY11$341+46%$124 – $443
Texas TX141$327+40%$95 – $649
Nebraska NE15$320+37%$63 – $583
Kansas KS26$297+27%$222 – $654
Kentucky KY44$288+23%$171 – $862
New Mexico NM14$274+17%$130 – $579
Ohio OH110$273+17%$245 – $439
New Hampshire NH19$267+14%$86 – $595
Minnesota MN67$262+12%$83 – $440
Missouri MO51$254+8%$135 – $449
Virginia VA54$248+6%$172 – $405
Pennsylvania PA107$241+3%$66 – $670
Oklahoma OK41$235+1%$133 – $306
Maryland MD29$231−1%$112 – $810
Washington WA45$213−9%$63 – $456
Connecticut CT13$202−14%$169 – $350
Colorado CO48$199−15%$152 – $441
Indiana IN76$192−18%$87 – $350
Arkansas AR16$190−19%$129 – $239
Alabama AL18$190−19%$71 – $1,386
Massachusetts MA40$190−19%$97 – $391
Oregon OR28$190−19%$99 – $305
Utah UT33$181−22%$149 – $213
Maine ME17$176−24%$105 – $417
Nevada NV11$172−26%$48 – $245
Florida FL91$171−27%$91 – $297
Tennessee TN42$168−28%$158 – $240
Arizona AZ25$162−31%$66 – $480
Michigan MI70$159−32%$73 – $252
Idaho ID17$157−33%$119 – $244
North Carolina NC66$148−37%$54 – $319
Iowa IA37$144−39%$128 – $400
New York NY102$140−40%$68 – $391
North Dakota ND21$139−40%$99 – $325
South Dakota SD10$139−40%$139 – $568
California CA73$130−44%$91 – $244
Louisiana LA34$122−48%$79 – $402
Mississippi MS25$96−59%$61 – $207
West Virginia WV23$75−68%$75 – $536
New Jersey NJ51$66−72%$63 – $165
Montana MT9not enough hospitals filed a usable price
Alaska AK8not enough hospitals filed a usable price
Hawaii HI8not 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 $234.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,609$219$87 – $441
Children’s46$259$149 – $655
Critical access433$267$121 – $490
Ownership
For-profit236$270$98 – $572
Government299$231$100 – $452
Non-profit1,553$222$95 – $456
System affiliation
Part of a system1,788$234$95 – $460
Independent309$231$102 – $439

Cash price vs list price

Median list price (chargemaster)$390
Median cash price$234
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

1,501 hospitals filed a usable inpatient cash price for this code. The median is $238 and the average of the middle 60% is $256; most fall between $116 and $460.

Cash price percentiles, inpatient, across 1,501 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
$71$130$238$428$650

The most expensive tenth of hospitals charges at least 9.1× what the cheapest tenth charges ($71 vs $650).

Of the 1,657 hospitals that filed this code inpatient, 1,501 gave a usable cash price; 90 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 66 a list price only.

How complete is this

2,097 of the 3,956 hospitals with a price file in our corpus (53%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 2,295 hospitals that filed this code at all gave us
Usable cash price — counted2,097
Cash price carrying a plausibility flag — shown on the compare tool, excluded here116
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 — excluded80
Hospitals that filed this code2,295

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 Pathology family.

Hospitals file this code under descriptions such as HC Fragile X Syndrome Dna W/Reflex.

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, “Fragile X gene test to detect abnormal repeats (CPT 81243) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-81243-fragile-x-gene-test-to-detect-abnormal-repeats