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Procedure price report · Pathology

Gene test for spinocerebellar ataxia type 7

CPT 81181the billing code this page is about

Laboratory analysis of the ATXN7 gene to look for an abnormal expanded repeat linked to an inherited form of spinocerebellar ataxia.

Hospitals typically charge $189 cash for this outpatient procedure — the median across 457 hospitals that filed a usable cash price; the average of the middle 60% is $209. Most fall between $120 and $314 (20th–80th percentile).

Hospitals
457
States
42
Filings dated
Dec 2024 – Sep 2026
Computed
September 25, 2026
Prices checked
through September 24, 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 457 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
$91$128$189$308$418

The most expensive tenth of hospitals charges at least 4.6× what the cheapest tenth charges ($91 vs $418).

How the prices are spread

$67 – $82: 19 hospitals$67$82 – $101: 19 hospitals$101 – $123: 35 hospitals$101$123 – $150: 81 hospitals$150 – $184: 44 hospitals$150$184 – $224: 37 hospitals$224 – $274: 50 hospitals$224$274 – $335: 78 hospitals$335 – $410: 14 hospitals$335$410 – $501: 41 hospitals$410median $189price bands are equal on a log scale
Hospitals per price band (418 of 457 — the bands cover the 5th to 95th percentile)
FromToHospitals
$67$8219
$82$10119
$101$12335
$123$15081
$150$18444
$184$22437
$224$27450
$274$33578
$335$41014
$410$50141

By state

The median cash price in each state, against the national median of $189.

Alaska: no hospital in the corpus filed a usable priceAKMaine: 2 hospitals filed a usable price — fewer than 10, so no figureMEVermont: no hospital in the corpus filed a usable priceVTNew Hampshire: no hospital in the corpus filed a usable priceNHWashington: median $248 across 11 hospitalsWA$248Idaho: 1 hospital filed a usable price — fewer than 10, so no figureIDMontana: 1 hospital filed a usable price — fewer than 10, so no figureMTNorth Dakota: no hospital in the corpus filed a usable priceNDMinnesota: median $123 across 20 hospitalsMN$123Illinois: median $206 across 20 hospitalsIL$206Wisconsin: median $308 across 32 hospitalsWI$308Michigan: median $189 across 10 hospitalsMI$189New York: median $137 across 23 hospitalsNY$137Massachusetts: 8 hospitals filed a usable price — fewer than 10, so no figureMAOregon: 6 hospitals filed a usable price — fewer than 10, so no figureORNevada: 1 hospital filed a usable price — fewer than 10, so no figureNVWyoming: no hospital in the corpus filed a usable priceWYSouth Dakota: no hospital in the corpus filed a usable priceSDIowa: median $154 across 11 hospitalsIA$154Indiana: median $198 across 19 hospitalsIN$198Ohio: median $311 across 38 hospitalsOH$311Pennsylvania: median $99 across 15 hospitalsPA$99New Jersey: median $151 across 24 hospitalsNJ$151Connecticut: 3 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: no hospital in the corpus filed a usable priceRICalifornia: median $314 across 21 hospitalsCA$314Utah: no hospital in the corpus filed a usable priceUTColorado: 1 hospital filed a usable price — fewer than 10, so no figureCONebraska: 2 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: 7 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: median $303 across 12 hospitalsKY$303West Virginia: 5 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: median $108 across 11 hospitalsVA$108Maryland: 3 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: 1 hospital filed a usable price — fewer than 10, so no figureDEArizona: 3 hospitals filed a usable price — fewer than 10, so no figureAZNew Mexico: 2 hospitals filed a usable price — fewer than 10, so no figureNMKansas: 6 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 3 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $108 across 16 hospitalsTN$108North Carolina: median $44 across 11 hospitalsNC$44South Carolina: median $288 across 17 hospitalsSC$288Oklahoma: 8 hospitals filed a usable price — fewer than 10, so no figureOKLouisiana: 8 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: 7 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: 2 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $67 across 13 hospitalsGA$67Hawaii: 1 hospital filed a usable price — fewer than 10, so no figureHITexas: median $261 across 39 hospitalsTX$261Florida: median $128 across 13 hospitalsFL$128
Cash price by state, most expensive first. National median $189. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
California CA21$314+66%$314 – $314
Ohio OH38$311+65%$133 – $385
Wisconsin WI32$308+63%$126 – $418
Kentucky KY12$303+60%$133 – $303
South Carolina SC17$288+52%$217 – $288
Texas TX39$261+38%$261 – $413
Washington WA11$248+31%$205 – $248
Illinois IL20$206+9%$137 – $316
Indiana IN19$198+5%$137 – $268
Michigan MI10$1890%$75 – $418
Iowa IA11$154−19%$154 – $154
New Jersey NJ24$151−20%$137 – $151
New York NY23$137−28%$137 – $347
Florida FL13$128−32%$91 – $137
Minnesota MN20$123−35%$98 – $123
Tennessee TN16$108−43%$47 – $108
Virginia VA11$108−43%$108 – $501
Pennsylvania PA15$99−48%$78 – $253
Georgia GA13$67−64%$67 – $116
North Carolina NC11$44−77%$44 – $53
Louisiana LA8not enough hospitals filed a usable price
Massachusetts MA8not enough hospitals filed a usable price
Oklahoma OK8not enough hospitals filed a usable price
Missouri MO7not enough hospitals filed a usable price
Mississippi MS7not enough hospitals filed a usable price
Kansas KS6not enough hospitals filed a usable price
Oregon OR6not enough hospitals filed a usable price
West Virginia WV5not enough hospitals filed a usable price
Arkansas AR3not enough hospitals filed a usable price
Arizona AZ3not enough hospitals filed a usable price
Connecticut CT3not enough hospitals filed a usable price
Maryland MD3not enough hospitals filed a usable price
Alabama AL2not enough hospitals filed a usable price
Maine ME2not enough hospitals filed a usable price
Nebraska NE2not enough hospitals filed a usable price
New Mexico NM2not enough hospitals filed a usable price
Colorado CO1not enough hospitals filed a usable price
Delaware DE1not enough hospitals filed a usable price
Hawaii HI1not enough hospitals filed a usable price
Idaho ID1not enough hospitals filed a usable price
Montana MT1not enough hospitals filed a usable price
Nevada NV1not 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 $189.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care364$185$116 – $314
Children’s11fewer than 20 hospitals
Critical access79$209$126 – $382
Ownership
For-profit29$198$116 – $261
Government44$137$116 – $220
Non-profit381$206$123 – $314
System affiliation
Part of a system417$193$121 – $314
Independent40$158$110 – $252

Cash price vs list price

Median list price (chargemaster)$412
Median cash price$189
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

309 hospitals filed a usable inpatient cash price for this code. The median is $253 and the average of the middle 60% is $226; most fall between $122 and $378.

Cash price percentiles, inpatient, across 309 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
$98$126$253$314$418

The most expensive tenth of hospitals charges at least 4.3× what the cheapest tenth charges ($98 vs $418).

Of the 326 hospitals that filed this code inpatient, 309 gave a usable cash price; 11 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 6 a list price only.

How complete is this

457 of the 3,956 hospitals with a price file in our corpus (12%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 468 hospitals that filed this code at all gave us
Usable cash price — counted457
Cash price carrying a plausibility flag — shown on the compare tool, excluded here6
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded1
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded4
Hospitals that filed this code468

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 24, 2026; the figures were computed September 25, 2026 from filings loaded through September 23, 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 ATXN7 GENE DETC ABNOR ALLELE.

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, “Gene test for spinocerebellar ataxia type 7 (CPT 81181) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-81181-gene-test-for-spinocerebellar-ataxia-type-7