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Procedure price report · Laboratory - Chemistry and Hematology

Heat-stable alkaline phosphatase blood test

CPT 84078the billing code this page is about

Measures the portion of the enzyme alkaline phosphatase that survives heating, reported when the total enzyme level is not measured separately.

Hospitals typically charge $38 cash for this outpatient procedure — the median across 538 hospitals that filed a usable cash price; the average of the middle 60% is $40. Most fall between $13 and $80 (20th–80th percentile).

Hospitals
538
States
46
Filings dated
Jan 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 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
$8$15$38$75$125

The most expensive tenth of hospitals charges at least 15× what the cheapest tenth charges ($8 vs $125).

How the prices are spread

$8 – $11: 71 hospitals$8$11 – $16: 50 hospitals$16 – $22: 42 hospitals$16$22 – $31: 50 hospitals$31 – $44: 73 hospitals$31$44 – $62: 70 hospitals$62 – $88: 83 hospitals$62$88 – $124: 24 hospitals$124 – $174: 24 hospitals$124$174 – $245: 4 hospitals$174median $38price bands are equal on a log scale
Hospitals per price band (491 of 538 — the bands cover the 5th to 95th percentile)
FromToHospitals
$8$1171
$11$1650
$16$2242
$22$3150
$31$4473
$44$6270
$62$8883
$88$12424
$124$17424
$174$2454

By state

The median cash price in each state, against the national median of $38.

Alaska: 2 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 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: 1 hospital filed a usable price — fewer than 10, so no figureNHWashington: median $37 across 16 hospitalsWA$37Idaho: 4 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 3 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: no hospital in the corpus filed a usable priceNDMinnesota: 2 hospitals filed a usable price — fewer than 10, so no figureMNIllinois: median $50 across 22 hospitalsIL$50Wisconsin: 1 hospital filed a usable price — fewer than 10, so no figureWIMichigan: 8 hospitals filed a usable price — fewer than 10, so no figureMINew York: median $21 across 37 hospitalsNY$21Massachusetts: 5 hospitals filed a usable price — fewer than 10, so no figureMAOregon: 4 hospitals filed a usable price — fewer than 10, so no figureORNevada: 2 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 1 hospital filed a usable price — fewer than 10, so no figureWYSouth Dakota: no hospital in the corpus filed a usable priceSDIowa: median $34 across 13 hospitalsIA$34Indiana: 5 hospitals filed a usable price — fewer than 10, so no figureINOhio: median $81 across 22 hospitalsOH$81Pennsylvania: median $16 across 37 hospitalsPA$16New Jersey: median $9 across 30 hospitalsNJ$9Connecticut: 5 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 1 hospital filed a usable price — fewer than 10, so no figureRICalifornia: median $58 across 39 hospitalsCA$58Utah: 2 hospitals filed a usable price — fewer than 10, so no figureUTColorado: 8 hospitals filed a usable price — fewer than 10, so no figureCONebraska: no hospital in the corpus filed a usable priceNEMissouri: 4 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: median $25 across 14 hospitalsKY$25West Virginia: 5 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: median $81 across 17 hospitalsVA$81Maryland: median $21 across 10 hospitalsMD$21Delaware: 2 hospitals filed a usable price — fewer than 10, so no figureDEArizona: 6 hospitals filed a usable price — fewer than 10, so no figureAZNew Mexico: no hospital in the corpus filed a usable priceNMKansas: 6 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 2 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $18 across 21 hospitalsTN$18North Carolina: median $50 across 24 hospitalsNC$50South Carolina: median $42 across 20 hospitalsSC$42Oklahoma: median $15 across 14 hospitalsOK$15Louisiana: 7 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: median $27 across 18 hospitalsMS$27Alabama: 6 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $68 across 31 hospitalsGA$68Hawaii: 3 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $134 across 32 hospitalsTX$134Florida: median $60 across 23 hospitalsFL$60
Cash price by state, most expensive first. National median $38. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Texas TX32$134+252%$83 – $774
Ohio OH22$81+113%$23 – $87
Virginia VA17$81+112%$50 – $112
Georgia GA31$68+78%$58 – $68
Florida FL23$60+57%$7 – $333
California CA39$58+53%$58 – $80
North Carolina NC24$50+32%$18 – $61
Illinois IL22$50+31%$13 – $166
South Carolina SC20$42+11%$42 – $79
Washington WA16$37−2%$32 – $47
Iowa IA13$34−12%$34 – $34
Mississippi MS18$27−29%$16 – $69
Kentucky KY14$25−35%$11 – $44
Maryland MD10$21−45%$17 – $24
New York NY37$21−46%$8 – $26
Tennessee TN21$18−54%$13 – $49
Pennsylvania PA37$16−59%$6 – $43
Oklahoma OK14$15−61%$15 – $25
New Jersey NJ30$9−76%$8 – $10
Colorado CO8not enough hospitals filed a usable price
Michigan MI8not enough hospitals filed a usable price
Louisiana LA7not enough hospitals filed a usable price
Alabama AL6not enough hospitals filed a usable price
Arizona AZ6not enough hospitals filed a usable price
Kansas KS6not enough hospitals filed a usable price
Connecticut CT5not enough hospitals filed a usable price
Indiana IN5not enough hospitals filed a usable price
Massachusetts MA5not enough hospitals filed a usable price
West Virginia WV5not enough hospitals filed a usable price
Idaho ID4not enough hospitals filed a usable price
Missouri MO4not enough hospitals filed a usable price
Oregon OR4not enough hospitals filed a usable price
Hawaii HI3not enough hospitals filed a usable price
Montana MT3not enough hospitals filed a usable price
Alaska AK2not enough hospitals filed a usable price
Arkansas AR2not enough hospitals filed a usable price
Delaware DE2not enough hospitals filed a usable price
Maine ME2not enough hospitals filed a usable price
Minnesota MN2not enough hospitals filed a usable price
Nevada NV2not enough hospitals filed a usable price
Utah UT2not enough hospitals filed a usable price
New Hampshire NH1not enough hospitals filed a usable price
Rhode Island RI1not enough hospitals filed a usable price
Vermont VT1not enough hospitals filed a usable price
Wisconsin WI1not enough hospitals filed a usable price
Wyoming WY1not 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 $38.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care456$36$11 – $80
Children’s5fewer than 20 hospitals
Critical access77$40$21 – $86
Ownership
For-profit73$51$12 – $227
Government71$25$10 – $61
Non-profit394$39$14 – $80
System affiliation
Part of a system468$38$13 – $80
Independent70$29$12 – $86

Cash price vs list price

Median list price (chargemaster)$81
Median cash price$38
Cash as a share of list, median hospital59%

At the typical hospital, asking for the cash price cuts the list price by about 41%. 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

378 hospitals filed a usable inpatient cash price for this code. The median is $47 and the average of the middle 60% is $50; most fall between $19 and $83.

Cash price percentiles, inpatient, across 378 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
$13$25$47$80$130

The most expensive tenth of hospitals charges at least 9.8× what the cheapest tenth charges ($13 vs $130).

Of the 420 hospitals that filed this code inpatient, 378 gave a usable cash price; 31 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 11 a list price only.

How complete is this

538 of the 3,956 hospitals with a price file in our corpus (14%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 587 hospitals that filed this code at all gave us
Usable cash price — counted538
Cash price carrying a plausibility flag — shown on the compare tool, excluded here31
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 — excluded17
Hospitals that filed this code587

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 24, 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 ASSAY ALKALINE PHOSPHATASE.

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, “Heat-stable alkaline phosphatase blood test (CPT 84078) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-84078-heat-stable-alkaline-phosphatase-blood-test