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Procedure price report · Laboratory - Chemistry and Hematology

Total thyroxine (T4) blood test

CPT 84436the billing code this page is about

A laboratory test that measures the total amount of the thyroid hormone thyroxine in blood.

Hospitals typically charge $47 cash for this outpatient procedure — the median across 3,334 hospitals that filed a usable cash price; the average of the middle 60% is $50. Most fall between $19 and $95 (20th–80th percentile).

Hospitals
3,334
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 3,334 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
$10$23$47$83$142

The most expensive tenth of hospitals charges at least 14× what the cheapest tenth charges ($10 vs $142).

How the prices are spread

$7 – $10: 154 hospitals$7$10 – $14: 165 hospitals$14 – $20: 215 hospitals$14$20 – $29: 301 hospitals$29 – $41: 484 hospitals$29$41 – $58: 547 hospitals$58 – $83: 473 hospitals$58$83 – $118: 378 hospitals$118 – $169: 198 hospitals$118$169 – $240: 92 hospitals$169median $47price bands are equal on a log scale
Hospitals per price band (3,007 of 3,334 — the bands cover the 5th to 95th percentile)
FromToHospitals
$7$10154
$10$14165
$14$20215
$20$29301
$29$41484
$41$58547
$58$83473
$83$118378
$118$169198
$169$24092

By state

The median cash price in each state, against the national median of $47.

Alaska: median $95 across 19 hospitalsAK$95Maine: median $42 across 28 hospitalsME$42Vermont: median $52 across 14 hospitalsVT$52New Hampshire: median $63 across 25 hospitalsNH$63Washington: median $53 across 76 hospitalsWA$53Idaho: median $31 across 25 hospitalsID$31Montana: median $53 across 30 hospitalsMT$53North Dakota: median $47 across 33 hospitalsND$47Minnesota: median $46 across 99 hospitalsMN$46Illinois: median $75 across 143 hospitalsIL$75Wisconsin: median $52 across 104 hospitalsWI$52Michigan: median $31 across 88 hospitalsMI$31New York: median $25 across 119 hospitalsNY$25Massachusetts: median $44 across 53 hospitalsMA$44Oregon: median $30 across 49 hospitalsOR$30Nevada: median $55 across 22 hospitalsNV$55Wyoming: median $45 across 16 hospitalsWY$45South Dakota: median $92 across 35 hospitalsSD$92Iowa: median $55 across 87 hospitalsIA$55Indiana: median $40 across 95 hospitalsIN$40Ohio: median $38 across 140 hospitalsOH$38Pennsylvania: median $37 across 121 hospitalsPA$37New Jersey: median $8 across 57 hospitalsNJ$8Connecticut: median $34 across 22 hospitalsCT$34Rhode Island: median $47 across 10 hospitalsRI$47California: median $25 across 153 hospitalsCA$25Utah: median $32 across 43 hospitalsUT$32Colorado: median $56 across 70 hospitalsCO$56Nebraska: median $64 across 80 hospitalsNE$64Missouri: median $45 across 77 hospitalsMO$45Kentucky: median $79 across 68 hospitalsKY$79West Virginia: median $49 across 43 hospitalsWV$49Virginia: median $62 across 72 hospitalsVA$62Maryland: median $40 across 40 hospitalsMD$40Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $52 across 42 hospitalsAZ$52New Mexico: median $67 across 30 hospitalsNM$67Kansas: median $38 across 88 hospitalsKS$38Arkansas: median $20 across 40 hospitalsAR$20Tennessee: median $25 across 82 hospitalsTN$25North Carolina: median $53 across 85 hospitalsNC$53South Carolina: median $76 across 53 hospitalsSC$76Oklahoma: median $46 across 72 hospitalsOK$46Louisiana: median $26 across 53 hospitalsLA$26Mississippi: median $31 across 55 hospitalsMS$31Alabama: median $47 across 44 hospitalsAL$47Georgia: median $51 across 111 hospitalsGA$51Hawaii: median $58 across 20 hospitalsHI$58Texas: median $74 across 251 hospitalsTX$74Florida: median $91 across 145 hospitalsFL$91
Cash price by state, most expensive first. National median $47. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Alaska AK19$95+103%$19 – $119
South Dakota SD35$92+96%$58 – $149
Florida FL145$91+94%$12 – $331
Kentucky KY68$79+69%$23 – $189
South Carolina SC53$76+61%$23 – $86
Illinois IL143$75+60%$27 – $131
Texas TX251$74+57%$27 – $147
New Mexico NM30$67+43%$26 – $116
Nebraska NE80$64+37%$29 – $96
New Hampshire NH25$63+34%$40 – $104
Virginia VA72$62+31%$12 – $123
Hawaii HI20$58+23%$29 – $77
Colorado CO70$56+19%$38 – $98
Iowa IA87$55+17%$37 – $71
Nevada NV22$55+17%$29 – $141
Washington WA76$53+14%$31 – $79
Montana MT30$53+13%$36 – $64
North Carolina NC85$53+12%$29 – $105
Arizona AZ42$52+12%$16 – $255
Wisconsin WI104$52+12%$32 – $73
Vermont VT14$52+11%$21 – $89
Georgia GA111$51+8%$21 – $141
West Virginia WV43$49+4%$29 – $77
Rhode Island RI10$470%$26 – $72
Alabama AL44$47−1%$15 – $133
North Dakota ND33$47−1%$13 – $57
Minnesota MN99$46−2%$21 – $69
Oklahoma OK72$46−2%$21 – $73
Wyoming WY16$45−3%$24 – $83
Missouri MO77$45−5%$31 – $91
Massachusetts MA53$44−6%$24 – $91
Maine ME28$42−11%$30 – $114
Maryland MD40$40−16%$30 – $49
Indiana IN95$40−16%$16 – $86
Ohio OH140$38−18%$17 – $82
Kansas KS88$38−20%$23 – $69
Pennsylvania PA121$37−21%$11 – $89
Connecticut CT22$34−29%$26 – $57
Utah UT43$32−32%$27 – $89
Michigan MI88$31−34%$10 – $48
Idaho ID25$31−34%$20 – $60
Mississippi MS55$31−35%$12 – $60
Oregon OR49$30−36%$20 – $50
Louisiana LA53$26−45%$11 – $51
California CA153$25−47%$5 – $118
New York NY119$25−47%$8 – $83
Tennessee TN82$25−47%$14 – $57
Arkansas AR40$20−58%$9 – $53
New Jersey NJ57$8−83%$8 – $39
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 $47.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care2,288$44$17 – $102
Children’s66$56$22 – $127
Critical access971$52$27 – $86
Ownership
For-profit467$74$22 – $281
Government633$48$21 – $87
Non-profit2,225$44$18 – $85
System affiliation
Part of a system2,692$48$19 – $100
Independent642$45$20 – $83

Cash price vs list price

Median list price (chargemaster)$78
Median cash price$47
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

2,232 hospitals filed a usable inpatient cash price for this code. The median is $46 and the average of the middle 60% is $49; most fall between $20 and $94.

Cash price percentiles, inpatient, across 2,232 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
$11$25$46$83$132

The most expensive tenth of hospitals charges at least 12× what the cheapest tenth charges ($11 vs $132).

Of the 2,475 hospitals that filed this code inpatient, 2,232 gave a usable cash price; 130 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 113 a list price only.

How complete is this

3,334 of the 3,956 hospitals with a price file in our corpus (84%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 3,661 hospitals that filed this code at all gave us
Usable cash price — counted3,334
Cash price carrying a plausibility flag — shown on the compare tool, excluded here188
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 — excluded137
Hospitals that filed this code3,661

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 T4 Total(Thyroxine).

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, “Total thyroxine (T4) blood test (CPT 84436) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-84436-total-thyroxine-t4-blood-test