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Procedure price report · Other Laboratory

Definitive drug test for 4 to 6 antiepileptic drugs

CPT 80340the billing code this page is about

A laboratory test on blood or urine that identifies and measures anti-seizure drugs not covered by a more specific code; this code is billed once when four to six such drugs are tested.

Hospitals typically charge $24 cash for this outpatient procedure — the median across 254 hospitals that filed a usable cash price; the average of the middle 60% is $43. Most fall between $9 and $105 (20th–80th percentile).

Hospitals
254
States
38
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 254 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
$5$11$24$104$230

The most expensive tenth of hospitals charges at least 44× what the cheapest tenth charges ($5 vs $230).

How the prices are spread

$5 – $8: 38 hospitals$5$8 – $11: 14 hospitals$11 – $17: 51 hospitals$11$17 – $25: 15 hospitals$25 – $38: 10 hospitals$25$38 – $57: 12 hospitals$57 – $86: 26 hospitals$57$86 – $130: 30 hospitals$130 – $195: 17 hospitals$130$195 – $293: 18 hospitals$195median $24price bands are equal on a log scale
Hospitals per price band (231 of 254 — the bands cover the 5th to 95th percentile)
FromToHospitals
$5$838
$8$1114
$11$1751
$17$2515
$25$3810
$38$5712
$57$8626
$86$13030
$130$19517
$195$29318

By state

The median cash price in each state, against the national median of $24.

Alaska: 1 hospital filed a usable price — fewer than 10, so no figureAKMaine: 2 hospitals filed a usable price — fewer than 10, so no figureMEVermont: no hospital in the corpus filed a usable priceVTNew Hampshire: 1 hospital filed a usable price — fewer than 10, so no figureNHWashington: median $71 across 14 hospitalsWA$71Idaho: 1 hospital filed a usable price — fewer than 10, so no figureIDMontana: no hospital in the corpus filed a usable priceMTNorth Dakota: no hospital in the corpus filed a usable priceNDMinnesota: 1 hospital filed a usable price — fewer than 10, so no figureMNIllinois: 7 hospitals filed a usable price — fewer than 10, so no figureILWisconsin: 4 hospitals filed a usable price — fewer than 10, so no figureWIMichigan: no hospital in the corpus filed a usable priceMINew York: median $17 across 14 hospitalsNY$17Massachusetts: median $27 across 13 hospitalsMA$27Oregon: 3 hospitals filed a usable price — fewer than 10, so no figureORNevada: 1 hospital filed a usable price — fewer than 10, so no figureNVWyoming: 1 hospital filed a usable price — fewer than 10, so no figureWYSouth Dakota: 1 hospital filed a usable price — fewer than 10, so no figureSDIowa: median $13 across 12 hospitalsIA$13Indiana: 2 hospitals filed a usable price — fewer than 10, so no figureINOhio: 8 hospitals filed a usable price — fewer than 10, so no figureOHPennsylvania: 5 hospitals filed a usable price — fewer than 10, so no figurePANew Jersey: median $63 across 19 hospitalsNJ$63Connecticut: no hospital in the corpus filed a usable priceCTRhode Island: no hospital in the corpus filed a usable priceRICalifornia: median $14 across 45 hospitalsCA$14Utah: no hospital in the corpus filed a usable priceUTColorado: 2 hospitals filed a usable price — fewer than 10, so no figureCONebraska: no hospital in the corpus filed a usable priceNEMissouri: 2 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: 5 hospitals filed a usable price — fewer than 10, so no figureKYWest Virginia: median $5 across 10 hospitalsWV$5Virginia: 1 hospital filed a usable price — fewer than 10, so no figureVAMaryland: median $193 across 11 hospitalsMD$193Delaware: 1 hospital filed a usable price — fewer than 10, so no figureDEArizona: no hospital in the corpus filed a usable priceAZNew Mexico: no hospital in the corpus filed a usable priceNMKansas: 3 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 1 hospital filed a usable price — fewer than 10, so no figureARTennessee: median $18 across 11 hospitalsTN$18North Carolina: median $3 across 10 hospitalsNC$3South Carolina: 5 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: no hospital in the corpus filed a usable priceOKLouisiana: 6 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: 2 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: 6 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: 3 hospitals filed a usable price — fewer than 10, so no figureGAHawaii: no hospital in the corpus filed a usable priceHITexas: 4 hospitals filed a usable price — fewer than 10, so no figureTXFlorida: median $7 across 16 hospitalsFL$7
Cash price by state, most expensive first. National median $24. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Maryland MD11$193+703%$17 – $262
Washington WA14$71+195%$34 – $98
New Jersey NJ19$63+162%$57 – $302
Massachusetts MA13$27+13%$23 – $200
Tennessee TN11$18−24%$11 – $154
New York NY14$17−30%$15 – $114
California CA45$14−42%$6 – $105
Iowa IA12$13−47%$13 – $13
Florida FL16$7−70%$6 – $7
West Virginia WV10$5−79%$5 – $5
North Carolina NC10$3−86%$3 – $4
Ohio OH8not enough hospitals filed a usable price
Illinois IL7not enough hospitals filed a usable price
Alabama AL6not enough hospitals filed a usable price
Louisiana LA6not enough hospitals filed a usable price
Kentucky KY5not enough hospitals filed a usable price
Pennsylvania PA5not enough hospitals filed a usable price
South Carolina SC5not enough hospitals filed a usable price
Texas TX4not enough hospitals filed a usable price
Wisconsin WI4not enough hospitals filed a usable price
Georgia GA3not enough hospitals filed a usable price
Kansas KS3not enough hospitals filed a usable price
Oregon OR3not enough hospitals filed a usable price
Colorado CO2not enough hospitals filed a usable price
Indiana IN2not enough hospitals filed a usable price
Maine ME2not enough hospitals filed a usable price
Missouri MO2not enough hospitals filed a usable price
Mississippi MS2not enough hospitals filed a usable price
Alaska AK1not enough hospitals filed a usable price
Arkansas AR1not enough hospitals filed a usable price
Delaware DE1not enough hospitals filed a usable price
Idaho ID1not enough hospitals filed a usable price
Minnesota MN1not enough hospitals filed a usable price
New Hampshire NH1not enough hospitals filed a usable price
Nevada NV1not enough hospitals filed a usable price
South Dakota SD1not enough hospitals filed a usable price
Virginia VA1not 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 $24.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care214$23$10 – $121
Children’s3fewer than 20 hospitals
Critical access36$33$7 – $87
Ownership
For-profit19fewer than 20 hospitals
Government29$11$5 – $62
Non-profit205$33$11 – $105
System affiliation
Part of a system218$23$7 – $105
Independent36$62$11 – $159

Cash price vs list price

Median list price (chargemaster)$37
Median cash price$24
Cash as a share of list, median hospital58%

At the typical hospital, asking for the cash price cuts the list price by about 42%. 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

181 hospitals filed a usable inpatient cash price for this code. The median is $15 and the average of the middle 60% is $35; most fall between $7 and $105.

Cash price percentiles, inpatient, across 181 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
$5$11$15$105$169

The most expensive tenth of hospitals charges at least 32× what the cheapest tenth charges ($5 vs $169).

Of the 214 hospitals that filed this code inpatient, 181 gave a usable cash price; 16 carried a plausibility flag, 1 filed a number their own filing marks as not a price, 0 gave an estimate, and 16 a list price only.

How complete is this

254 of the 3,956 hospitals with a price file in our corpus (6%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 302 hospitals that filed this code at all gave us
Usable cash price — counted254
Cash price carrying a plausibility flag — shown on the compare tool, excluded here20
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded6
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded22
Hospitals that filed this code302

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 Other Laboratory family.

Hospitals file this code under descriptions such as ANTIEPILEPTICS NOS 4-6.

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, “Definitive drug test for 4 to 6 antiepileptic drugs (CPT 80340) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-80340-definitive-drug-test-for-4-to-6-antiepileptic-drugs