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Procedure price report · Laboratory - Chemistry and Hematology

Vitamin B1 (thiamine) blood test

CPT 84425the billing code this page is about

A laboratory test that measures the level of thiamine, also called vitamin B1, in a blood sample.

Hospitals typically charge $88 cash for this outpatient procedure — the median across 3,271 hospitals that filed a usable cash price; the average of the middle 60% is $92. Most fall between $35 and $175 (20th–80th percentile).

Hospitals
3,271
States
50
Filings dated
Dec 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 3,271 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
$21$43$88$154$259

The most expensive tenth of hospitals charges at least 12× what the cheapest tenth charges ($21 vs $259).

How the prices are spread

$16 – $22: 173 hospitals$16$22 – $30: 178 hospitals$30 – $40: 262 hospitals$30$40 – $55: 334 hospitals$55 – $75: 331 hospitals$55$75 – $102: 386 hospitals$102 – $140: 489 hospitals$102$140 – $191: 393 hospitals$191 – $260: 236 hospitals$191$260 – $355: 163 hospitals$260median $88price bands are equal on a log scale
Hospitals per price band (2,945 of 3,271 — the bands cover the 5th to 95th percentile)
FromToHospitals
$16$22173
$22$30178
$30$40262
$40$55334
$55$75331
$75$102386
$102$140489
$140$191393
$191$260236
$260$355163

By state

The median cash price in each state, against the national median of $88.

Alaska: median $225 across 19 hospitalsAK$225Maine: median $58 across 28 hospitalsME$58Vermont: median $195 across 14 hospitalsVT$195New Hampshire: median $89 across 25 hospitalsNH$89Washington: median $102 across 75 hospitalsWA$102Idaho: median $87 across 23 hospitalsID$87Montana: median $130 across 29 hospitalsMT$130North Dakota: median $139 across 35 hospitalsND$139Minnesota: median $92 across 103 hospitalsMN$92Illinois: median $130 across 141 hospitalsIL$130Wisconsin: median $110 across 102 hospitalsWI$110Michigan: median $47 across 89 hospitalsMI$47New York: median $52 across 116 hospitalsNY$52Massachusetts: median $121 across 53 hospitalsMA$121Oregon: median $73 across 49 hospitalsOR$73Nevada: median $104 across 20 hospitalsNV$104Wyoming: median $100 across 16 hospitalsWY$100South Dakota: median $132 across 39 hospitalsSD$132Iowa: median $102 across 88 hospitalsIA$102Indiana: median $92 across 97 hospitalsIN$92Ohio: median $73 across 137 hospitalsOH$73Pennsylvania: median $101 across 120 hospitalsPA$101New Jersey: median $24 across 54 hospitalsNJ$24Connecticut: median $77 across 23 hospitalsCT$77Rhode Island: median $78 across 10 hospitalsRI$78California: median $25 across 122 hospitalsCA$25Utah: median $103 across 42 hospitalsUT$103Colorado: median $124 across 66 hospitalsCO$124Nebraska: median $167 across 80 hospitalsNE$167Missouri: median $87 across 73 hospitalsMO$87Kentucky: median $140 across 69 hospitalsKY$140West Virginia: median $71 across 43 hospitalsWV$71Virginia: median $117 across 73 hospitalsVA$117Maryland: median $130 across 42 hospitalsMD$130Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $140 across 39 hospitalsAZ$140New Mexico: median $110 across 29 hospitalsNM$110Kansas: median $111 across 88 hospitalsKS$111Arkansas: median $36 across 38 hospitalsAR$36Tennessee: median $64 across 83 hospitalsTN$64North Carolina: median $50 across 89 hospitalsNC$50South Carolina: median $108 across 50 hospitalsSC$108Oklahoma: median $84 across 71 hospitalsOK$84Louisiana: median $63 across 50 hospitalsLA$63Mississippi: median $58 across 55 hospitalsMS$58Alabama: median $81 across 43 hospitalsAL$81Georgia: median $111 across 108 hospitalsGA$111Hawaii: median $100 across 19 hospitalsHI$100Texas: median $71 across 239 hospitalsTX$71Florida: median $20 across 148 hospitalsFL$20
Cash price by state, most expensive first. National median $88. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Alaska AK19$225+155%$75 – $334
Vermont VT14$195+122%$103 – $353
Nebraska NE80$167+90%$65 – $240
Kentucky KY69$140+59%$53 – $268
Arizona AZ39$140+59%$30 – $230
North Dakota ND35$139+58%$40 – $173
South Dakota SD39$132+50%$52 – $212
Illinois IL141$130+48%$71 – $226
Montana MT29$130+48%$89 – $222
Maryland MD42$130+47%$98 – $159
Colorado CO66$124+41%$48 – $208
Massachusetts MA53$121+38%$58 – $200
Virginia VA73$117+33%$37 – $277
Georgia GA108$111+27%$53 – $190
Kansas KS88$111+26%$71 – $172
Wisconsin WI102$110+25%$84 – $163
New Mexico NM29$110+25%$64 – $212
South Carolina SC50$108+22%$60 – $166
Nevada NV20$104+19%$50 – $188
Utah UT42$103+17%$87 – $201
Washington WA75$102+16%$64 – $153
Iowa IA88$102+16%$63 – $176
Pennsylvania PA120$101+15%$32 – $249
Hawaii HI19$100+14%$52 – $163
Wyoming WY16$100+14%$43 – $207
Indiana IN97$92+4%$39 – $230
Minnesota MN103$92+4%$29 – $155
New Hampshire NH25$89+1%$38 – $269
Idaho ID23$87−1%$35 – $124
Missouri MO73$87−1%$62 – $163
Oklahoma OK71$84−5%$50 – $134
Alabama AL43$81−8%$39 – $296
Rhode Island RI10$78−11%$49 – $189
Connecticut CT23$77−12%$21 – $113
Oregon OR49$73−17%$33 – $116
Ohio OH137$73−18%$43 – $116
Texas TX239$71−19%$30 – $254
West Virginia WV43$71−20%$12 – $124
Tennessee TN83$64−27%$37 – $185
Louisiana LA50$63−28%$36 – $116
Maine ME28$58−34%$24 – $148
Mississippi MS55$58−34%$29 – $110
New York NY116$52−41%$24 – $152
North Carolina NC89$50−43%$35 – $167
Michigan MI89$47−47%$17 – $71
Arkansas AR38$36−59%$28 – $116
California CA122$25−71%$12 – $55
New Jersey NJ54$24−72%$21 – $99
Florida FL148$20−77%$14 – $87
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 $88.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care2,241$76$30 – $167
Children’s50$46$26 – $111
Critical access970$114$54 – $193
Ownership
For-profit453$93$26 – $340
Government625$102$42 – $182
Non-profit2,183$83$35 – $165
System affiliation
Part of a system2,650$86$34 – $178
Independent621$97$42 – $166

Cash price vs list price

Median list price (chargemaster)$146
Median cash price$88
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

2,196 hospitals filed a usable inpatient cash price for this code. The median is $88 and the average of the middle 60% is $92; most fall between $37 and $168.

Cash price percentiles, inpatient, across 2,196 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
$24$44$88$152$236

The most expensive tenth of hospitals charges at least 9.9× what the cheapest tenth charges ($24 vs $236).

Of the 2,427 hospitals that filed this code inpatient, 2,196 gave a usable cash price; 119 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 112 a list price only.

How complete is this

3,271 of the 3,956 hospitals with a price file in our corpus (83%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 3,566 hospitals that filed this code at all gave us
Usable cash price — counted3,271
Cash price carrying a plausibility flag — shown on the compare tool, excluded here160
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 — excluded133
Hospitals that filed this code3,566

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 Laboratory - Chemistry and Hematology family.

Hospitals file this code under descriptions such as HC Vitamin B1, Whole Blood.

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, “Vitamin B1 (thiamine) blood test (CPT 84425) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-84425-vitamin-b1-thiamine-blood-test