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Procedure price report · Other Laboratory

Phenobarbital blood level test

CPT 80184the billing code this page is about

A blood test that measures the amount of the seizure and sedative medicine phenobarbital in the blood.

Hospitals typically charge $72 cash for this outpatient procedure — the median across 3,225 hospitals that filed a usable cash price; the average of the middle 60% is $76. Most fall between $30 and $143 (20th–80th percentile).

Hospitals
3,225
States
50
Filings dated
Aug 2022 – 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 3,225 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
$18$35$72$122$231

The most expensive tenth of hospitals charges at least 13× what the cheapest tenth charges ($18 vs $231).

How the prices are spread

$14 – $19: 208 hospitals$14$19 – $27: 194 hospitals$27 – $38: 333 hospitals$27$38 – $52: 299 hospitals$52 – $73: 457 hospitals$52$73 – $102: 472 hospitals$102 – $141: 437 hospitals$102$141 – $196: 281 hospitals$196 – $273: 127 hospitals$196$273 – $380: 100 hospitals$273median $72price bands are equal on a log scale
Hospitals per price band (2,908 of 3,225 — the bands cover the 5th to 95th percentile)
FromToHospitals
$14$19208
$19$27194
$27$38333
$38$52299
$52$73457
$73$102472
$102$141437
$141$196281
$196$273127
$273$380100

By state

The median cash price in each state, against the national median of $72.

Alaska: median $141 across 15 hospitalsAK$141Maine: median $60 across 28 hospitalsME$60Vermont: median $84 across 14 hospitalsVT$84New Hampshire: median $72 across 23 hospitalsNH$72Washington: median $78 across 72 hospitalsWA$78Idaho: median $63 across 22 hospitalsID$63Montana: median $83 across 29 hospitalsMT$83North Dakota: median $78 across 28 hospitalsND$78Minnesota: median $71 across 100 hospitalsMN$71Illinois: median $97 across 143 hospitalsIL$97Wisconsin: median $79 across 102 hospitalsWI$79Michigan: median $68 across 92 hospitalsMI$68New York: median $45 across 105 hospitalsNY$45Massachusetts: median $66 across 50 hospitalsMA$66Oregon: median $68 across 48 hospitalsOR$68Nevada: median $78 across 19 hospitalsNV$78Wyoming: median $54 across 16 hospitalsWY$54South Dakota: median $92 across 27 hospitalsSD$92Iowa: median $78 across 86 hospitalsIA$78Indiana: median $94 across 95 hospitalsIN$94Ohio: median $56 across 140 hospitalsOH$56Pennsylvania: median $64 across 122 hospitalsPA$64New Jersey: median $18 across 53 hospitalsNJ$18Connecticut: median $54 across 22 hospitalsCT$54Rhode Island: 9 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $61 across 151 hospitalsCA$61Utah: median $81 across 39 hospitalsUT$81Colorado: median $85 across 60 hospitalsCO$85Nebraska: median $130 across 75 hospitalsNE$130Missouri: median $53 across 74 hospitalsMO$53Kentucky: median $95 across 68 hospitalsKY$95West Virginia: median $83 across 33 hospitalsWV$83Virginia: median $68 across 72 hospitalsVA$68Maryland: median $41 across 41 hospitalsMD$41Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $80 across 39 hospitalsAZ$80New Mexico: median $97 across 24 hospitalsNM$97Kansas: median $86 across 84 hospitalsKS$86Arkansas: median $33 across 38 hospitalsAR$33Tennessee: median $36 across 80 hospitalsTN$36North Carolina: median $59 across 86 hospitalsNC$59South Carolina: median $106 across 52 hospitalsSC$106Oklahoma: median $77 across 73 hospitalsOK$77Louisiana: median $42 across 50 hospitalsLA$42Mississippi: median $50 across 56 hospitalsMS$50Alabama: median $51 across 43 hospitalsAL$51Georgia: median $70 across 107 hospitalsGA$70Hawaii: median $86 across 19 hospitalsHI$86Texas: median $94 across 241 hospitalsTX$94Florida: median $158 across 153 hospitalsFL$158
Cash price by state, most expensive first. National median $72. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Florida FL153$158+121%$30 – $816
Alaska AK15$141+97%$72 – $191
Nebraska NE75$130+82%$39 – $181
South Carolina SC52$106+48%$56 – $124
Illinois IL143$97+36%$49 – $186
New Mexico NM24$97+35%$71 – $130
Kentucky KY68$95+33%$46 – $155
Texas TX241$94+31%$30 – $292
Indiana IN95$94+31%$30 – $178
South Dakota SD27$92+29%$48 – $227
Hawaii HI19$86+21%$73 – $152
Kansas KS84$86+21%$56 – $122
Colorado CO60$85+18%$32 – $185
Vermont VT14$84+17%$63 – $195
West Virginia WV33$83+16%$45 – $165
Montana MT29$83+16%$70 – $140
Utah UT39$81+13%$68 – $234
Arizona AZ39$80+11%$20 – $308
Wisconsin WI102$79+10%$57 – $113
Iowa IA86$78+10%$53 – $122
North Dakota ND28$78+10%$28 – $97
Washington WA72$78+10%$43 – $142
Nevada NV19$78+9%$26 – $147
Oklahoma OK73$77+7%$39 – $121
New Hampshire NH23$720%$35 – $169
Minnesota MN100$710%$32 – $99
Georgia GA107$70−2%$29 – $164
Virginia VA72$68−4%$20 – $168
Michigan MI92$68−5%$22 – $86
Oregon OR48$68−5%$27 – $103
Massachusetts MA50$66−8%$34 – $122
Pennsylvania PA122$64−10%$20 – $180
Idaho ID22$63−12%$11 – $115
California CA151$61−15%$14 – $236
Maine ME28$60−16%$32 – $154
North Carolina NC86$59−18%$23 – $113
Ohio OH140$56−22%$27 – $105
Wyoming WY16$54−24%$35 – $124
Connecticut CT22$54−24%$40 – $115
Missouri MO74$53−25%$34 – $129
Alabama AL43$51−28%$22 – $165
Mississippi MS56$50−30%$20 – $77
New York NY105$45−37%$21 – $133
Louisiana LA50$42−41%$23 – $81
Maryland MD41$41−42%$31 – $49
Tennessee TN80$36−50%$20 – $94
Arkansas AR38$33−54%$18 – $107
New Jersey NJ53$18−75%$15 – $46
Rhode Island RI9not enough hospitals filed a usable price
Delaware DE7not 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 $72.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care2,247$68$26 – $150
Children’s67$90$36 – $140
Critical access901$82$41 – $138
Ownership
For-profit443$124$41 – $544
Government600$73$32 – $131
Non-profit2,172$69$29 – $122
System affiliation
Part of a system2,626$72$30 – $149
Independent599$71$33 – $128

Cash price vs list price

Median list price (chargemaster)$118
Median cash price$72
Cash as a share of list, median hospital65%

At the typical hospital, asking for the cash price cuts the list price by about 35%. 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

2,203 hospitals filed a usable inpatient cash price for this code. The median is $70 and the average of the middle 60% is $73; most fall between $30 and $132.

Cash price percentiles, inpatient, across 2,203 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
$19$35$70$118$203

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($19 vs $203).

Of the 2,427 hospitals that filed this code inpatient, 2,203 gave a usable cash price; 115 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 109 a list price only.

How complete is this

3,225 of the 3,956 hospitals with a price file in our corpus (82%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 3,528 hospitals that filed this code at all gave us
Usable cash price — counted3,225
Cash price carrying a plausibility flag — shown on the compare tool, excluded here174
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded1
A list price only, no cash figure — excluded128
Hospitals that filed this code3,528

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 July 20, 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 Other Laboratory family.

Hospitals file this code under descriptions such as HC Phenobarb.

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, “Phenobarbital blood level test (CPT 80184) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-80184-phenobarbital-blood-level-test