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Procedure price report · Microscopic examination (bacterial smear, culture, toxicology)

Extra specialized chromosome staining added to a study

CPT 88283the billing code this page is about

Add-on charge for an additional special banding or staining technique used to highlight chromosome detail during a chromosome analysis; billed per study.

Hospitals typically charge $129 cash for this outpatient procedure — the median across 561 hospitals that filed a usable cash price; the average of the middle 60% is $149. Most fall between $69 and $272 (20th–80th percentile).

Hospitals
561
States
47
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 561 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
$56$75$129$250$393

The most expensive tenth of hospitals charges at least 7.1× what the cheapest tenth charges ($56 vs $393).

How the prices are spread

$37 – $49: 18 hospitals$37$49 – $64: 36 hospitals$64 – $84: 115 hospitals$64$84 – $111: 46 hospitals$111 – $145: 54 hospitals$111$145 – $191: 59 hospitals$191 – $251: 66 hospitals$191$251 – $330: 70 hospitals$330 – $433: 24 hospitals$330$433 – $569: 17 hospitals$433median $129price bands are equal on a log scale
Hospitals per price band (505 of 561 — the bands cover the 5th to 95th percentile)
FromToHospitals
$37$4918
$49$6436
$64$84115
$84$11146
$111$14554
$145$19159
$191$25166
$251$33070
$330$43324
$433$56917

By state

The median cash price in each state, against the national median of $129.

Alaska: 3 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 6 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 1 hospital filed a usable price — fewer than 10, so no figureVTNew Hampshire: 4 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $129 across 33 hospitalsWA$129Idaho: 5 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: 7 hospitals filed a usable price — fewer than 10, so no figureMNIllinois: median $263 across 27 hospitalsIL$263Wisconsin: median $235 across 27 hospitalsWI$235Michigan: median $65 across 24 hospitalsMI$65New York: median $103 across 35 hospitalsNY$103Massachusetts: 1 hospital filed a usable price — fewer than 10, so no figureMAOregon: 9 hospitals filed a usable price — fewer than 10, so no figureORNevada: 2 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 $128 across 17 hospitalsIA$128Indiana: median $110 across 22 hospitalsIN$110Ohio: median $162 across 40 hospitalsOH$162Pennsylvania: median $79 across 24 hospitalsPA$79New Jersey: median $75 across 23 hospitalsNJ$75Connecticut: 5 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 1 hospital filed a usable price — fewer than 10, so no figureRICalifornia: median $184 across 45 hospitalsCA$184Utah: no hospital in the corpus filed a usable priceUTColorado: median $393 across 11 hospitalsCO$393Nebraska: 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 $158 across 11 hospitalsKY$158West Virginia: median $74 across 17 hospitalsWV$74Virginia: 5 hospitals filed a usable price — fewer than 10, so no figureVAMaryland: 6 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: no hospital in the corpus filed a usable priceDEArizona: 3 hospitals filed a usable price — fewer than 10, so no figureAZNew Mexico: 1 hospital filed a usable price — fewer than 10, so no figureNMKansas: 3 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 1 hospital filed a usable price — fewer than 10, so no figureARTennessee: 8 hospitals filed a usable price — fewer than 10, so no figureTNNorth Carolina: median $105 across 18 hospitalsNC$105South Carolina: 3 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: median $120 across 12 hospitalsOK$120Louisiana: median $64 across 13 hospitalsLA$64Mississippi: 1 hospital filed a usable price — fewer than 10, so no figureMSAlabama: 4 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $236 across 19 hospitalsGA$236Hawaii: 1 hospital filed a usable price — fewer than 10, so no figureHITexas: median $272 across 32 hospitalsTX$272Florida: median $56 across 12 hospitalsFL$56
Cash price by state, most expensive first. National median $129. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Colorado CO11$393+205%$377 – $393
Texas TX32$272+111%$272 – $293
Illinois IL27$263+103%$98 – $280
Georgia GA19$236+83%$126 – $236
Wisconsin WI27$235+82%$199 – $738
California CA45$184+43%$105 – $195
Ohio OH40$162+26%$59 – $259
Kentucky KY11$158+23%$75 – $259
Washington WA33$1290%$82 – $201
Iowa IA17$128−1%$128 – $299
Oklahoma OK12$120−7%$120 – $120
Indiana IN22$110−15%$75 – $157
North Carolina NC18$105−19%$20 – $137
New York NY35$103−20%$69 – $330
Pennsylvania PA24$79−39%$47 – $250
New Jersey NJ23$75−42%$69 – $75
West Virginia WV17$74−43%$74 – $74
Michigan MI24$65−50%$19 – $82
Louisiana LA13$64−50%$37 – $107
Florida FL12$56−56%$56 – $56
Missouri MO9not enough hospitals filed a usable price
Oregon OR9not enough hospitals filed a usable price
Tennessee TN8not enough hospitals filed a usable price
Minnesota MN7not enough hospitals filed a usable price
Maryland MD6not enough hospitals filed a usable price
Maine ME6not enough hospitals filed a usable price
Connecticut CT5not enough hospitals filed a usable price
Idaho ID5not enough hospitals filed a usable price
Virginia VA5not enough hospitals filed a usable price
Alabama AL4not enough hospitals filed a usable price
New Hampshire NH4not enough hospitals filed a usable price
Alaska AK3not enough hospitals filed a usable price
Arizona AZ3not enough hospitals filed a usable price
Kansas KS3not enough hospitals filed a usable price
Montana MT3not enough hospitals filed a usable price
North Dakota ND3not enough hospitals filed a usable price
Nebraska NE3not enough hospitals filed a usable price
South Carolina SC3not enough hospitals filed a usable price
Nevada NV2not enough hospitals filed a usable price
Arkansas AR1not enough hospitals filed a usable price
Hawaii HI1not enough hospitals filed a usable price
Massachusetts MA1not enough hospitals filed a usable price
Mississippi MS1not enough hospitals filed a usable price
New Mexico NM1not enough hospitals filed a usable price
Rhode Island RI1not 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 $129.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care461$128$69 – $266
Children’s19fewer than 20 hospitals
Critical access78$132$74 – $378
Ownership
For-profit41$135$75 – $272
Government68$120$69 – $289
Non-profit449$137$69 – $272
System affiliation
Part of a system508$128$69 – $272
Independent53$166$79 – $319

Cash price vs list price

Median list price (chargemaster)$281
Median cash price$129
Cash as a share of list, median hospital56%

At the typical hospital, asking for the cash price cuts the list price by about 44%. 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

412 hospitals filed a usable inpatient cash price for this code. The median is $179 and the average of the middle 60% is $174; most fall between $77 and $280.

Cash price percentiles, inpatient, across 412 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
$56$82$179$263$393

The most expensive tenth of hospitals charges at least 7.0× what the cheapest tenth charges ($56 vs $393).

Of the 435 hospitals that filed this code inpatient, 412 gave a usable cash price; 10 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 13 a list price only.

How complete is this

561 of the 3,956 hospitals with a price file in our corpus (14%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 591 hospitals that filed this code at all gave us
Usable cash price — counted561
Cash price carrying a plausibility flag — shown on the compare tool, excluded here15
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 — excluded14
Hospitals that filed this code591

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 23, 2026. The percentiles and averages use only the “counted” row.

Related procedures

Part of the Microscopic examination (bacterial smear, culture, toxicology) family.

Hospitals file this code under descriptions such as CHROMOSOME BANDING STUDY.

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, “Extra specialized chromosome staining added to a study (CPT 88283) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-88283-extra-specialized-chromosome-staining-added-to-a-study