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Procedure price report · Laboratory - Chemistry and Hematology

Blood test for interleukin-6

CPT 83529the billing code this page is about

Measures interleukin-6, a protein released by the immune system, in a blood sample.

Hospitals typically charge $78 cash for this outpatient procedure — the median across 1,924 hospitals that filed a usable cash price; the average of the middle 60% is $82. Most fall between $33 and $162 (20th–80th percentile).

Hospitals
1,924
States
50
Filings dated
Jan 2024 – 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 1,924 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$38$78$140$232

The most expensive tenth of hospitals charges at least 9.7× what the cheapest tenth charges ($24 vs $232).

How the prices are spread

$18 – $24: 98 hospitals$18$24 – $33: 177 hospitals$33 – $44: 198 hospitals$33$44 – $60: 213 hospitals$60 – $82: 220 hospitals$60$82 – $111: 298 hospitals$111 – $151: 192 hospitals$111$151 – $205: 198 hospitals$205 – $278: 94 hospitals$205$278 – $378: 47 hospitals$278median $78price bands are equal on a log scale
Hospitals per price band (1,735 of 1,924 — the bands cover the 5th to 95th percentile)
FromToHospitals
$18$2498
$24$33177
$33$44198
$44$60213
$60$82220
$82$111298
$111$151192
$151$205198
$205$27894
$278$37847

By state

The median cash price in each state, against the national median of $78.

Alaska: 6 hospitals filed a usable price — fewer than 10, so no figureAKMaine: median $120 across 19 hospitalsME$120Vermont: 6 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: median $109 across 17 hospitalsNH$109Washington: median $51 across 43 hospitalsWA$51Idaho: median $106 across 17 hospitalsID$106Montana: 9 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: median $48 across 18 hospitalsND$48Minnesota: median $89 across 70 hospitalsMN$89Illinois: median $100 across 73 hospitalsIL$100Wisconsin: median $80 across 83 hospitalsWI$80Michigan: median $66 across 43 hospitalsMI$66New York: median $44 across 76 hospitalsNY$44Massachusetts: median $91 across 46 hospitalsMA$91Oregon: median $53 across 25 hospitalsOR$53Nevada: median $53 across 11 hospitalsNV$53Wyoming: 9 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 9 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $83 across 36 hospitalsIA$83Indiana: median $53 across 49 hospitalsIN$53Ohio: median $77 across 103 hospitalsOH$77Pennsylvania: median $108 across 85 hospitalsPA$108New Jersey: median $19 across 38 hospitalsNJ$19Connecticut: median $61 across 17 hospitalsCT$61Rhode Island: 7 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $65 across 87 hospitalsCA$65Utah: median $470 across 31 hospitalsUT$470Colorado: median $131 across 37 hospitalsCO$131Nebraska: median $93 across 22 hospitalsNE$93Missouri: median $124 across 44 hospitalsMO$124Kentucky: median $96 across 43 hospitalsKY$96West Virginia: median $95 across 17 hospitalsWV$95Virginia: median $61 across 54 hospitalsVA$61Maryland: median $80 across 32 hospitalsMD$80Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $99 across 19 hospitalsAZ$99New Mexico: median $33 across 15 hospitalsNM$33Kansas: median $153 across 14 hospitalsKS$153Arkansas: median $50 across 28 hospitalsAR$50Tennessee: median $46 across 47 hospitalsTN$46North Carolina: median $46 across 52 hospitalsNC$46South Carolina: median $159 across 34 hospitalsSC$159Oklahoma: median $108 across 46 hospitalsOK$108Louisiana: median $44 across 31 hospitalsLA$44Mississippi: median $31 across 35 hospitalsMS$31Alabama: median $112 across 19 hospitalsAL$112Georgia: median $84 across 66 hospitalsGA$84Hawaii: 7 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $72 across 111 hospitalsTX$72Florida: median $54 across 111 hospitalsFL$54
Cash price by state, most expensive first. National median $78. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Utah UT31$470+505%$247 – $552
South Carolina SC34$159+104%$82 – $177
Kansas KS14$153+97%$121 – $220
Colorado CO37$131+69%$36 – $377
Missouri MO44$124+59%$46 – $168
Maine ME19$120+54%$40 – $273
Alabama AL19$112+45%$21 – $210
New Hampshire NH17$109+41%$73 – $303
Oklahoma OK46$108+39%$43 – $179
Pennsylvania PA85$108+39%$48 – $194
Idaho ID17$106+37%$47 – $133
Illinois IL73$100+29%$36 – $189
Arizona AZ19$99+27%$21 – $198
Kentucky KY43$96+24%$52 – $672
West Virginia WV17$95+23%$86 – $103
Nebraska NE22$93+20%$37 – $280
Massachusetts MA46$91+17%$56 – $141
Minnesota MN70$89+14%$33 – $157
Georgia GA66$84+9%$47 – $105
Iowa IA36$83+7%$64 – $158
Maryland MD32$80+4%$64 – $149
Wisconsin WI83$80+3%$42 – $124
Ohio OH103$770%$45 – $147
Texas TX111$72−7%$36 – $232
Michigan MI43$66−15%$24 – $140
California CA87$65−16%$36 – $95
Connecticut CT17$61−21%$38 – $137
Virginia VA54$61−22%$29 – $228
Florida FL111$54−30%$34 – $88
Indiana IN49$53−31%$23 – $106
Oregon OR25$53−32%$18 – $151
Nevada NV11$53−32%$18 – $85
Washington WA43$51−34%$28 – $96
Arkansas AR28$50−35%$46 – $159
North Dakota ND18$48−38%$30 – $100
Tennessee TN47$46−40%$22 – $85
North Carolina NC52$46−41%$37 – $173
Louisiana LA31$44−43%$18 – $166
New York NY76$44−44%$21 – $98
New Mexico NM15$33−58%$26 – $110
Mississippi MS35$31−61%$16 – $138
New Jersey NJ38$19−75%$17 – $20
Montana MT9not enough hospitals filed a usable price
South Dakota SD9not enough hospitals filed a usable price
Wyoming WY9not enough hospitals filed a usable price
Delaware DE7not enough hospitals filed a usable price
Hawaii HI7not enough hospitals filed a usable price
Rhode Island RI7not enough hospitals filed a usable price
Alaska AK6not enough hospitals filed a usable price
Vermont VT6not 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 $78.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,521$72$33 – $158
Children’s38$65$28 – $244
Critical access356$100$41 – $169
Ownership
For-profit251$83$47 – $233
Government241$75$34 – $168
Non-profit1,423$77$32 – $155
System affiliation
Part of a system1,702$77$34 – $159
Independent222$82$30 – $192

Cash price vs list price

Median list price (chargemaster)$135
Median cash price$78
Cash as a share of list, median hospital60%

At the typical hospital, asking for the cash price cuts the list price by about 40%. 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

1,375 hospitals filed a usable inpatient cash price for this code. The median is $80 and the average of the middle 60% is $81; most fall between $36 and $155.

Cash price percentiles, inpatient, across 1,375 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
$27$41$80$135$210

The most expensive tenth of hospitals charges at least 7.7× what the cheapest tenth charges ($27 vs $210).

Of the 1,510 hospitals that filed this code inpatient, 1,375 gave a usable cash price; 83 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 52 a list price only.

How complete is this

1,924 of the 3,956 hospitals with a price file in our corpus (49%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 2,084 hospitals that filed this code at all gave us
Usable cash price — counted1,924
Cash price carrying a plausibility flag — shown on the compare tool, excluded here104
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded2
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded54
Hospitals that filed this code2,084

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 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 Interleukin-6, Serum.

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, “Blood test for interleukin-6 (CPT 83529) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-83529-blood-test-for-interleukin-6