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Procedure price report · Pathology

Chromosome microarray test on a cancer sample

CPT 81277the billing code this page is about

A laboratory test that scans DNA from a tumor, blood, or marrow sample across the whole genome for extra or missing segments and loss of one parent's copy.

Hospitals typically charge $2,002 cash for this outpatient procedure — the median across 793 hospitals that filed a usable cash price; the average of the middle 60% is $2,062. Most fall between $1,199 and $3,263 (20th–80th percentile).

Hospitals
793
States
44
Filings dated
Dec 2024 – 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 793 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
$977$1,303$2,002$2,904$4,295

The most expensive tenth of hospitals charges at least 4.4× what the cheapest tenth charges ($977 vs $4,295).

How the prices are spread

$763 – $924: 31 hospitals$763$924 – $1,120: 44 hospitals$1,120 – $1,357: 107 hospitals$1,120$1,357 – $1,644: 69 hospitals$1,644 – $1,992: 96 hospitals$1,644$1,992 – $2,414: 112 hospitals$2,414 – $2,925: 97 hospitals$2,414$2,925 – $3,544: 71 hospitals$3,544 – $4,294: 46 hospitals$3,544$4,294 – $5,203: 44 hospitals$4,294median $2,002price bands are equal on a log scale
Hospitals per price band (717 of 793 — the bands cover the 5th to 95th percentile)
FromToHospitals
$763$92431
$924$1,12044
$1,120$1,357107
$1,357$1,64469
$1,644$1,99296
$1,992$2,414112
$2,414$2,92597
$2,925$3,54471
$3,544$4,29446
$4,294$5,20344

By state

The median cash price in each state, against the national median of $2,002.

Alaska: no hospital in the corpus filed a usable priceAKMaine: 2 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 1 hospital filed a usable price — fewer than 10, so no figureVTNew Hampshire: median $1,329 across 10 hospitalsNH$1,329Washington: median $1,758 across 20 hospitalsWA$1,758Idaho: 6 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 2 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $1,936 across 36 hospitalsMN$1,936Illinois: median $1,844 across 30 hospitalsIL$1,844Wisconsin: median $3,046 across 36 hospitalsWI$3,046Michigan: median $2,253 across 28 hospitalsMI$2,253New York: median $1,392 across 27 hospitalsNY$1,392Massachusetts: median $3,538 across 18 hospitalsMA$3,538Oregon: median $3,529 across 16 hospitalsOR$3,529Nevada: 7 hospitals 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 $1,371 across 24 hospitalsIA$1,371Indiana: median $1,794 across 23 hospitalsIN$1,794Ohio: median $4,147 across 43 hospitalsOH$4,147Pennsylvania: median $1,267 across 34 hospitalsPA$1,267New Jersey: median $1,276 across 32 hospitalsNJ$1,276Connecticut: 6 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: no hospital in the corpus filed a usable priceRICalifornia: median $2,020 across 40 hospitalsCA$2,020Utah: median $2,002 across 23 hospitalsUT$2,002Colorado: median $1,218 across 11 hospitalsCO$1,218Nebraska: no hospital in the corpus filed a usable priceNEMissouri: median $1,741 across 15 hospitalsMO$1,741Kentucky: median $3,455 across 14 hospitalsKY$3,455West Virginia: 6 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: median $1,838 across 25 hospitalsVA$1,838Maryland: median $1,854 across 16 hospitalsMD$1,854Delaware: 2 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $4,372 across 15 hospitalsAZ$4,372New Mexico: 1 hospital filed a usable price — fewer than 10, so no figureNMKansas: median $1,929 across 10 hospitalsKS$1,929Arkansas: 6 hospitals filed a usable price — fewer than 10, so no figureARTennessee: 7 hospitals filed a usable price — fewer than 10, so no figureTNNorth Carolina: median $1,303 across 32 hospitalsNC$1,303South Carolina: median $1,141 across 22 hospitalsSC$1,141Oklahoma: 6 hospitals filed a usable price — fewer than 10, so no figureOKLouisiana: median $1,173 across 10 hospitalsLA$1,173Mississippi: median $1,018 across 14 hospitalsMS$1,018Alabama: 4 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $1,912 across 27 hospitalsGA$1,912Hawaii: no hospital in the corpus filed a usable priceHITexas: median $2,303 across 59 hospitalsTX$2,303Florida: median $1,440 across 24 hospitalsFL$1,440
Cash price by state, most expensive first. National median $2,002. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Arizona AZ15$4,372+118%$2,754 – $4,372
Ohio OH43$4,147+107%$2,888 – $5,203
Massachusetts MA18$3,538+77%$2,700 – $4,440
Oregon OR16$3,529+76%$1,584 – $4,002
Kentucky KY14$3,455+73%$1,447 – $7,743
Wisconsin WI36$3,046+52%$2,090 – $9,693
Texas TX59$2,303+15%$1,050 – $2,303
Michigan MI28$2,253+13%$1,601 – $2,419
California CA40$2,020+1%$1,704 – $2,649
Utah UT23$2,0020%$2,002 – $2,356
Minnesota MN36$1,936−3%$1,677 – $3,276
Kansas KS10$1,929−4%$464 – $2,504
Georgia GA27$1,912−5%$1,298 – $4,834
Maryland MD16$1,854−7%$896 – $3,012
Illinois IL30$1,844−8%$1,026 – $3,631
Virginia VA25$1,838−8%$1,514 – $2,286
Indiana IN23$1,794−10%$1,389 – $4,429
Washington WA20$1,758−12%$1,627 – $3,118
Missouri MO15$1,741−13%$1,188 – $2,826
Florida FL24$1,440−28%$1,065 – $2,636
New York NY27$1,392−30%$1,160 – $3,084
Iowa IA24$1,371−32%$1,114 – $3,403
New Hampshire NH10$1,329−34%$665 – $2,246
North Carolina NC32$1,303−35%$924 – $2,525
New Jersey NJ32$1,276−36%$1,160 – $1,334
Pennsylvania PA34$1,267−37%$539 – $2,498
Colorado CO11$1,218−39%$1,218 – $2,184
Louisiana LA10$1,173−41%$861 – $1,675
South Carolina SC22$1,141−43%$1,141 – $2,383
Mississippi MS14$1,018−49%$862 – $1,792
Nevada NV7not enough hospitals filed a usable price
Tennessee TN7not enough hospitals filed a usable price
Arkansas AR6not enough hospitals filed a usable price
Connecticut CT6not enough hospitals filed a usable price
Idaho ID6not enough hospitals filed a usable price
Oklahoma OK6not enough hospitals filed a usable price
West Virginia WV6not enough hospitals filed a usable price
Alabama AL4not enough hospitals filed a usable price
North Dakota ND3not enough hospitals filed a usable price
Delaware DE2not enough hospitals filed a usable price
Maine ME2not enough hospitals filed a usable price
Montana MT2not enough hospitals filed a usable price
New Mexico NM1not enough hospitals filed a usable price
Vermont VT1not 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 $2,002.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care661$2,002$1,160 – $3,263
Children’s30$2,117$1,159 – $3,114
Critical access99$2,117$1,625 – $3,455
Ownership
For-profit41$2,303$1,400 – $4,372
Government93$1,893$1,087 – $2,728
Non-profit656$2,002$1,218 – $3,273
System affiliation
Part of a system711$2,020$1,196 – $3,273
Independent82$1,781$1,334 – $2,797

Cash price vs list price

Median list price (chargemaster)$3,603
Median cash price$2,002
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

612 hospitals filed a usable inpatient cash price for this code. The median is $2,303 and the average of the middle 60% is $2,266; most fall between $1,327 and $3,493.

Cash price percentiles, inpatient, across 612 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
$1,065$1,430$2,303$3,118$4,799

The most expensive tenth of hospitals charges at least 4.5× what the cheapest tenth charges ($1,065 vs $4,799).

Of the 675 hospitals that filed this code inpatient, 612 gave a usable cash price; 42 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 21 a list price only.

How complete is this

793 of the 3,956 hospitals with a price file in our corpus (20%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 866 hospitals that filed this code at all gave us
Usable cash price — counted793
Cash price carrying a plausibility flag — shown on the compare tool, excluded here50
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 — excluded22
Hospitals that filed this code866

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 Neoplastic Chromosome Microarray.

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, “Chromosome microarray test on a cancer sample (CPT 81277) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-81277-chromosome-microarray-test-on-a-cancer-sample