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Procedure price report · Other Laboratory

Nitroblue tetrazolium dye test for white cell function

CPT 86384the billing code this page is about

A laboratory test that uses a color-changing dye to check whether white blood cells can produce the chemicals they use to kill bacteria.

Hospitals typically charge $66 cash for this outpatient procedure — the median across 366 hospitals that filed a usable cash price; the average of the middle 60% is $84. Most fall between $18 and $276 (20th–80th percentile).

Hospitals
366
States
42
Filings dated
Dec 2024 – 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 366 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
$14$22$66$179$604

The most expensive tenth of hospitals charges at least 44× what the cheapest tenth charges ($14 vs $604).

How the prices are spread

$13 – $20: 73 hospitals$13$20 – $30: 45 hospitals$30 – $46: 35 hospitals$30$46 – $70: 25 hospitals$70 – $107: 26 hospitals$70$107 – $163: 54 hospitals$163 – $248: 20 hospitals$163$248 – $378: 25 hospitals$378 – $576: 16 hospitals$378$576 – $879: 19 hospitals$576median $66price bands are equal on a log scale
Hospitals per price band (338 of 366 — the bands cover the 5th to 95th percentile)
FromToHospitals
$13$2073
$20$3045
$30$4635
$46$7025
$70$10726
$107$16354
$163$24820
$248$37825
$378$57616
$576$87919

By state

The median cash price in each state, against the national median of $66.

Alaska: no hospital in the corpus filed a usable priceAKMaine: no hospital in the corpus filed a usable priceMEVermont: 1 hospital filed a usable price — fewer than 10, so no figureVTNew Hampshire: no hospital in the corpus filed a usable priceNHWashington: 3 hospitals filed a usable price — fewer than 10, so no figureWAIdaho: 1 hospital filed a usable price — fewer than 10, so no figureIDMontana: no hospital in the corpus filed a usable priceMTNorth Dakota: 1 hospital filed a usable price — fewer than 10, so no figureNDMinnesota: 1 hospital filed a usable price — fewer than 10, so no figureMNIllinois: median $62 across 21 hospitalsIL$62Wisconsin: no hospital in the corpus filed a usable priceWIMichigan: median $16 across 11 hospitalsMI$16New York: median $14 across 18 hospitalsNY$14Massachusetts: 9 hospitals filed a usable price — fewer than 10, so no figureMAOregon: 6 hospitals filed a usable price — fewer than 10, so no figureORNevada: 4 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 1 hospital filed a usable price — fewer than 10, so no figureWYSouth Dakota: no hospital in the corpus filed a usable priceSDIowa: median $34 across 14 hospitalsIA$34Indiana: median $27 across 17 hospitalsIN$27Ohio: median $61 across 10 hospitalsOH$61Pennsylvania: median $13 across 21 hospitalsPA$13New Jersey: median $15 across 34 hospitalsNJ$15Connecticut: 5 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 4 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $117 across 38 hospitalsCA$117Utah: 3 hospitals filed a usable price — fewer than 10, so no figureUTColorado: median $207 across 26 hospitalsCO$207Nebraska: 3 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: 9 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: median $125 across 11 hospitalsKY$125West Virginia: no hospital in the corpus filed a usable priceWVVirginia: 5 hospitals filed a usable price — fewer than 10, so no figureVAMaryland: 7 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: no hospital in the corpus filed a usable priceDEArizona: 2 hospitals filed a usable price — fewer than 10, so no figureAZNew Mexico: 3 hospitals filed a usable price — fewer than 10, so no figureNMKansas: 2 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 3 hospitals filed a usable price — fewer than 10, so no figureARTennessee: 5 hospitals filed a usable price — fewer than 10, so no figureTNNorth Carolina: 2 hospitals filed a usable price — fewer than 10, so no figureNCSouth Carolina: 4 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: median $25 across 13 hospitalsOK$25Louisiana: 3 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: 2 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: 1 hospital filed a usable price — fewer than 10, so no figureALGeorgia: 4 hospitals filed a usable price — fewer than 10, so no figureGAHawaii: 4 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $1,205 across 15 hospitalsTX$1,205Florida: median $82 across 19 hospitalsFL$82
Cash price by state, most expensive first. National median $66. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Texas TX15$1,205+1731%$29 – $1,331
Colorado CO26$207+215%$65 – $604
Kentucky KY11$125+90%$125 – $322
California CA38$117+78%$114 – $117
Florida FL19$82+25%$28 – $501
Illinois IL21$62−6%$16 – $515
Ohio OH10$61−7%$23 – $134
Iowa IA14$34−49%$34 – $362
Indiana IN17$27−59%$20 – $56
Oklahoma OK13$25−63%$25 – $29
Michigan MI11$16−75%$16 – $19
New Jersey NJ34$15−77%$14 – $860
New York NY18$14−79%$14 – $41
Pennsylvania PA21$13−80%$9 – $40
Massachusetts MA9not enough hospitals filed a usable price
Missouri MO9not enough hospitals filed a usable price
Maryland MD7not enough hospitals filed a usable price
Oregon OR6not enough hospitals filed a usable price
Connecticut CT5not enough hospitals filed a usable price
Tennessee TN5not enough hospitals filed a usable price
Virginia VA5not enough hospitals filed a usable price
Georgia GA4not enough hospitals filed a usable price
Hawaii HI4not enough hospitals filed a usable price
Nevada NV4not enough hospitals filed a usable price
Rhode Island RI4not enough hospitals filed a usable price
South Carolina SC4not enough hospitals filed a usable price
Arkansas AR3not enough hospitals filed a usable price
Louisiana LA3not enough hospitals filed a usable price
Nebraska NE3not enough hospitals filed a usable price
New Mexico NM3not enough hospitals filed a usable price
Utah UT3not enough hospitals filed a usable price
Washington WA3not enough hospitals filed a usable price
Arizona AZ2not enough hospitals filed a usable price
Kansas KS2not enough hospitals filed a usable price
Mississippi MS2not enough hospitals filed a usable price
North Carolina NC2not enough hospitals filed a usable price
Alabama AL1not enough hospitals filed a usable price
Idaho ID1not enough hospitals filed a usable price
Minnesota MN1not enough hospitals filed a usable price
North Dakota ND1not enough hospitals filed a usable price
Vermont VT1not enough hospitals filed a usable price
Wyoming WY1not 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 $66.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care312$62$16 – $282
Children’s22$79$67 – $257
Critical access31$130$23 – $204
Ownership
For-profit60$204$25 – $918
Government36$32$14 – $309
Non-profit269$62$16 – $152
System affiliation
Part of a system311$67$16 – $223
Independent55$62$22 – $325

Cash price vs list price

Median list price (chargemaster)$165
Median cash price$66
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

170 hospitals filed a usable inpatient cash price for this code. The median is $92 and the average of the middle 60% is $91; most fall between $29 and $198.

Cash price percentiles, inpatient, across 170 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
$22$34$92$152$338

The most expensive tenth of hospitals charges at least 15× what the cheapest tenth charges ($22 vs $338).

Of the 186 hospitals that filed this code inpatient, 170 gave a usable cash price; 4 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 12 a list price only.

How complete is this

366 of the 3,956 hospitals with a price file in our corpus (9%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 386 hospitals that filed this code at all gave us
Usable cash price — counted366
Cash price carrying a plausibility flag — shown on the compare tool, excluded here8
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded1
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded11
Hospitals that filed this code386

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 5, 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 NITROBLUE TETRAZOLIUM DYE.

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, “Nitroblue tetrazolium dye test for white cell function (CPT 86384) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-86384-nitroblue-tetrazolium-dye-test-for-white-cell-function