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Procedure price report · Other Laboratory

Unlisted immune system laboratory test

CPT 86849the billing code this page is about

Used for an immunology blood test that has no specific billing code of its own; here billed for an antibody test sent to an outside laboratory.

Hospitals typically charge $105 cash for this outpatient procedure — the median across 1,019 hospitals that filed a usable cash price; the average of the middle 60% is $123. Most fall between $45 and $277 (20th–80th percentile).

Hospitals
1,019
States
47
Filings dated
Dec 2023 – 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 1,019 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
$25$53$105$217$454

The most expensive tenth of hospitals charges at least 18× what the cheapest tenth charges ($25 vs $454).

How the prices are spread

$19 – $27: 63 hospitals$19$27 – $39: 60 hospitals$39 – $57: 120 hospitals$39$57 – $83: 139 hospitals$83 – $120: 118 hospitals$83$120 – $174: 125 hospitals$174 – $253: 114 hospitals$174$253 – $367: 106 hospitals$367 – $532: 44 hospitals$367$532 – $772: 36 hospitals$532median $105price bands are equal on a log scale
Hospitals per price band (925 of 1,019 — the bands cover the 5th to 95th percentile)
FromToHospitals
$19$2763
$27$3960
$39$57120
$57$83139
$83$120118
$120$174125
$174$253114
$253$367106
$367$53244
$532$77236

By state

The median cash price in each state, against the national median of $105.

Alaska: 8 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 1 hospital filed a usable price — fewer than 10, so no figureMEVermont: 2 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 5 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $147 across 34 hospitalsWA$147Idaho: 2 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 3 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $79 across 18 hospitalsMN$79Illinois: median $144 across 54 hospitalsIL$144Wisconsin: median $338 across 28 hospitalsWI$338Michigan: median $36 across 15 hospitalsMI$36New York: median $174 across 42 hospitalsNY$174Massachusetts: median $76 across 20 hospitalsMA$76Oregon: 7 hospitals filed a usable price — fewer than 10, so no figureORNevada: 5 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 3 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: no hospital in the corpus filed a usable priceSDIowa: 9 hospitals filed a usable price — fewer than 10, so no figureIAIndiana: median $72 across 60 hospitalsIN$72Ohio: median $168 across 48 hospitalsOH$168Pennsylvania: median $76 across 53 hospitalsPA$76New Jersey: median $125 across 22 hospitalsNJ$125Connecticut: 7 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 3 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $25 across 46 hospitalsCA$25Utah: 6 hospitals filed a usable price — fewer than 10, so no figureUTColorado: median $99 across 32 hospitalsCO$99Nebraska: median $93 across 11 hospitalsNE$93Missouri: median $207 across 22 hospitalsMO$207Kentucky: median $97 across 29 hospitalsKY$97West Virginia: median $38 across 22 hospitalsWV$38Virginia: median $53 across 34 hospitalsVA$53Maryland: median $124 across 22 hospitalsMD$124Delaware: no hospital in the corpus filed a usable priceDEArizona: median $198 across 11 hospitalsAZ$198New Mexico: 5 hospitals filed a usable price — fewer than 10, so no figureNMKansas: median $197 across 16 hospitalsKS$197Arkansas: 3 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $44 across 21 hospitalsTN$44North Carolina: median $88 across 44 hospitalsNC$88South Carolina: median $217 across 29 hospitalsSC$217Oklahoma: median $28 across 11 hospitalsOK$28Louisiana: median $70 across 11 hospitalsLA$70Mississippi: median $60 across 16 hospitalsMS$60Alabama: 4 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $100 across 37 hospitalsGA$100Hawaii: no hospital in the corpus filed a usable priceHITexas: median $76 across 103 hospitalsTX$76Florida: median $181 across 32 hospitalsFL$181
Cash price by state, most expensive first. National median $105. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Wisconsin WI28$338+222%$189 – $416
South Carolina SC29$217+107%$18 – $252
Missouri MO22$207+97%$81 – $292
Arizona AZ11$198+89%$37 – $198
Kansas KS16$197+88%$68 – $265
Florida FL32$181+72%$73 – $301
New York NY42$174+66%$44 – $357
Ohio OH48$168+60%$92 – $189
Washington WA34$147+40%$74 – $330
Illinois IL54$144+37%$90 – $584
New Jersey NJ22$125+19%$67 – $311
Maryland MD22$124+18%$47 – $250
Georgia GA37$100−5%$50 – $182
Colorado CO32$99−6%$76 – $165
Kentucky KY29$97−8%$42 – $168
Nebraska NE11$93−11%$29 – $105
North Carolina NC44$88−17%$46 – $292
Minnesota MN18$79−25%$62 – $351
Pennsylvania PA53$76−27%$43 – $462
Texas TX103$76−27%$69 – $392
Massachusetts MA20$76−28%$36 – $341
Indiana IN60$72−32%$42 – $197
Louisiana LA11$70−33%$43 – $113
Mississippi MS16$60−43%$36 – $178
Virginia VA34$53−49%$43 – $144
Tennessee TN21$44−58%$29 – $110
West Virginia WV22$38−64%$19 – $72
Michigan MI15$36−65%$12 – $184
Oklahoma OK11$28−73%$9 – $60
California CA46$25−76%$25 – $120
Iowa IA9not enough hospitals filed a usable price
Alaska AK8not enough hospitals filed a usable price
Connecticut CT7not enough hospitals filed a usable price
Oregon OR7not enough hospitals filed a usable price
Utah UT6not enough hospitals filed a usable price
New Hampshire NH5not enough hospitals filed a usable price
New Mexico NM5not enough hospitals filed a usable price
Nevada NV5not enough hospitals filed a usable price
Alabama AL4not enough hospitals filed a usable price
Arkansas AR3not enough hospitals filed a usable price
Montana MT3not enough hospitals filed a usable price
North Dakota ND3not enough hospitals filed a usable price
Rhode Island RI3not enough hospitals filed a usable price
Wyoming WY3not enough hospitals filed a usable price
Idaho ID2not enough hospitals filed a usable price
Vermont VT2not enough hospitals filed a usable price
Maine ME1not 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 $105.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care818$101$44 – $264
Children’s27$140$54 – $579
Critical access170$106$52 – $338
Ownership
For-profit137$100$50 – $360
Government145$110$46 – $266
Non-profit733$104$44 – $268
System affiliation
Part of a system851$100$45 – $288
Independent168$128$44 – $269

Cash price vs list price

Median list price (chargemaster)$186
Median cash price$105
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

714 hospitals filed a usable inpatient cash price for this code. The median is $101 and the average of the middle 60% is $122; most fall between $45 and $261.

Cash price percentiles, inpatient, across 714 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
$25$53$101$217$380

The most expensive tenth of hospitals charges at least 15× what the cheapest tenth charges ($25 vs $380).

Of the 803 hospitals that filed this code inpatient, 714 gave a usable cash price; 26 carried a plausibility flag, 5 filed a number their own filing marks as not a price, 0 gave an estimate, and 58 a list price only.

How complete is this

1,019 of the 3,956 hospitals with a price file in our corpus (26%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 1,166 hospitals that filed this code at all gave us
Usable cash price — counted1,019
Cash price carrying a plausibility flag — shown on the compare tool, excluded here42
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded6
An estimate rather than a filed cash price — excluded1
A list price only, no cash figure — excluded98
Hospitals that filed this code1,166

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 24, 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 IMMUNOLOGY PROCEDURE.

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, “Unlisted immune system laboratory test (CPT 86849) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-86849-unlisted-immune-system-laboratory-test