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Procedure price report · Pathology

JAK2 gene test of exons 12 and 13

CPT 81279the billing code this page is about

A laboratory test on blood or marrow that reads the exon 12 and 13 regions of the JAK2 gene for mutations linked to bone marrow disorders that overproduce blood cells.

Hospitals typically charge $334 cash for this outpatient procedure — the median across 1,737 hospitals that filed a usable cash price; the average of the middle 60% is $352. Most fall between $188 and $579 (20th–80th percentile).

Hospitals
1,737
States
50
Filings dated
Jan 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 1,737 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
$137$209$334$513$807

The most expensive tenth of hospitals charges at least 5.9× what the cheapest tenth charges ($137 vs $807).

How the prices are spread

$113 – $144: 119 hospitals$113$144 – $183: 94 hospitals$183 – $233: 208 hospitals$183$233 – $297: 230 hospitals$297 – $379: 254 hospitals$297$379 – $483: 218 hospitals$483 – $615: 229 hospitals$483$615 – $784: 118 hospitals$784 – $999: 62 hospitals$784$999 – $1,273: 33 hospitals$999median $334price bands are equal on a log scale
Hospitals per price band (1,565 of 1,737 — the bands cover the 5th to 95th percentile)
FromToHospitals
$113$144119
$144$18394
$183$233208
$233$297230
$297$379254
$379$483218
$483$615229
$615$784118
$784$99962
$999$1,27333

By state

The median cash price in each state, against the national median of $334.

Alaska: 6 hospitals filed a usable price — fewer than 10, so no figureAKMaine: median $214 across 14 hospitalsME$214Vermont: 1 hospital filed a usable price — fewer than 10, so no figureVTNew Hampshire: median $312 across 13 hospitalsNH$312Washington: median $449 across 49 hospitalsWA$449Idaho: median $272 across 14 hospitalsID$272Montana: 6 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 7 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $334 across 32 hospitalsMN$334Illinois: median $390 across 78 hospitalsIL$390Wisconsin: median $400 across 65 hospitalsWI$400Michigan: median $286 across 44 hospitalsMI$286New York: median $298 across 74 hospitalsNY$298Massachusetts: median $450 across 38 hospitalsMA$450Oregon: median $314 across 28 hospitalsOR$314Nevada: median $556 across 11 hospitalsNV$556Wyoming: 7 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 8 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $260 across 31 hospitalsIA$260Indiana: median $334 across 66 hospitalsIN$334Ohio: median $490 across 94 hospitalsOH$490Pennsylvania: median $513 across 78 hospitalsPA$513New Jersey: median $204 across 40 hospitalsNJ$204Connecticut: median $400 across 13 hospitalsCT$400Rhode Island: 4 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $310 across 55 hospitalsCA$310Utah: median $422 across 29 hospitalsUT$422Colorado: median $364 across 35 hospitalsCO$364Nebraska: median $390 across 24 hospitalsNE$390Missouri: median $395 across 43 hospitalsMO$395Kentucky: median $389 across 38 hospitalsKY$389West Virginia: median $163 across 29 hospitalsWV$163Virginia: median $270 across 49 hospitalsVA$270Maryland: median $348 across 29 hospitalsMD$348Delaware: 4 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $573 across 27 hospitalsAZ$573New Mexico: median $235 across 14 hospitalsNM$235Kansas: median $316 across 32 hospitalsKS$316Arkansas: median $123 across 18 hospitalsAR$123Tennessee: median $209 across 39 hospitalsTN$209North Carolina: median $263 across 52 hospitalsNC$263South Carolina: median $287 across 37 hospitalsSC$287Oklahoma: median $350 across 35 hospitalsOK$350Louisiana: median $268 across 20 hospitalsLA$268Mississippi: median $150 across 21 hospitalsMS$150Alabama: median $306 across 13 hospitalsAL$306Georgia: median $291 across 70 hospitalsGA$291Hawaii: median $334 across 14 hospitalsHI$334Texas: median $329 across 110 hospitalsTX$329Florida: median $264 across 79 hospitalsFL$264
Cash price by state, most expensive first. National median $334. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Arizona AZ27$573+72%$182 – $636
Nevada NV11$556+67%$204 – $648
Pennsylvania PA78$513+54%$261 – $1,306
Ohio OH94$490+47%$296 – $732
Massachusetts MA38$450+35%$287 – $694
Washington WA49$449+35%$153 – $931
Utah UT29$422+26%$409 – $481
Wisconsin WI65$400+20%$336 – $767
Connecticut CT13$400+20%$350 – $594
Missouri MO43$395+18%$223 – $468
Nebraska NE24$390+17%$241 – $675
Illinois IL78$390+17%$222 – $679
Kentucky KY38$389+17%$218 – $1,340
Colorado CO35$364+9%$243 – $593
Oklahoma OK35$350+5%$216 – $507
Maryland MD29$348+4%$150 – $1,043
Hawaii HI14$3340%$254 – $938
Indiana IN66$3340%$205 – $511
Minnesota MN32$3340%$106 – $367
Texas TX110$329−1%$137 – $492
Kansas KS32$316−5%$155 – $585
Oregon OR28$314−6%$270 – $400
New Hampshire NH13$312−6%$224 – $1,165
California CA55$310−7%$188 – $314
Alabama AL13$306−8%$193 – $610
New York NY74$298−11%$185 – $602
Georgia GA70$291−13%$190 – $602
South Carolina SC37$287−14%$286 – $513
Michigan MI44$286−14%$212 – $673
Idaho ID14$272−19%$188 – $409
Virginia VA49$270−19%$183 – $676
Louisiana LA20$268−20%$89 – $412
Florida FL79$264−21%$146 – $583
North Carolina NC52$263−21%$66 – $565
Iowa IA31$260−22%$178 – $467
New Mexico NM14$235−30%$226 – $338
Maine ME14$214−36%$131 – $328
Tennessee TN39$209−37%$121 – $285
New Jersey NJ40$204−39%$185 – $213
West Virginia WV29$163−51%$140 – $491
Mississippi MS21$150−55%$82 – $285
Arkansas AR18$123−63%$120 – $444
South Dakota SD8not enough hospitals filed a usable price
North Dakota ND7not enough hospitals filed a usable price
Wyoming WY7not enough hospitals filed a usable price
Alaska AK6not enough hospitals filed a usable price
Montana MT6not enough hospitals filed a usable price
Delaware DE4not enough hospitals filed a usable price
Rhode Island RI4not 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 $334.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,378$329$185 – $566
Children’s21$482$256 – $610
Critical access329$370$232 – $673
Ownership
For-profit165$356$190 – $613
Government247$334$186 – $565
Non-profit1,316$334$187 – $577
System affiliation
Part of a system1,495$330$185 – $579
Independent242$364$203 – $578

Cash price vs list price

Median list price (chargemaster)$614
Median cash price$334
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

1,253 hospitals filed a usable inpatient cash price for this code. The median is $346 and the average of the middle 60% is $370; most fall between $194 and $591.

Cash price percentiles, inpatient, across 1,253 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
$146$222$346$532$807

The most expensive tenth of hospitals charges at least 5.5× what the cheapest tenth charges ($146 vs $807).

Of the 1,396 hospitals that filed this code inpatient, 1,253 gave a usable cash price; 86 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 57 a list price only.

How complete is this

1,737 of the 3,956 hospitals with a price file in our corpus (44%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 1,915 hospitals that filed this code at all gave us
Usable cash price — counted1,737
Cash price carrying a plausibility flag — shown on the compare tool, excluded here111
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 — excluded65
Hospitals that filed this code1,915

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 Jak2 Ngs Level 4.

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, “JAK2 gene test of exons 12 and 13 (CPT 81279) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-81279-jak2-gene-test-of-exons-12-and-13