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

Extra cells counted in a chromosome study

CPT 88285the billing code this page is about

Add-on charge for counting cells beyond the number included in the main chromosome analysis; billed per study.

Hospitals typically charge $75 cash for this outpatient procedure — the median across 1,522 hospitals that filed a usable cash price; the average of the middle 60% is $83. Most fall between $32 and $167 (20th–80th percentile).

Hospitals
1,522
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 1,522 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$39$75$146$251

The most expensive tenth of hospitals charges at least 10× what the cheapest tenth charges ($24 vs $251).

How the prices are spread

$17 – $23: 71 hospitals$17$23 – $31: 128 hospitals$31 – $41: 137 hospitals$31$41 – $55: 159 hospitals$55 – $73: 183 hospitals$55$73 – $98: 155 hospitals$98 – $131: 185 hospitals$98$131 – $176: 149 hospitals$176 – $235: 110 hospitals$176$235 – $315: 94 hospitals$235median $75price bands are equal on a log scale
Hospitals per price band (1,371 of 1,522 — the bands cover the 5th to 95th percentile)
FromToHospitals
$17$2371
$23$31128
$31$41137
$41$55159
$55$73183
$73$98155
$98$131185
$131$176149
$176$235110
$235$31594

By state

The median cash price in each state, against the national median of $75.

Alaska: 7 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 8 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 4 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 7 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $85 across 44 hospitalsWA$85Idaho: 3 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 6 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 7 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $73 across 56 hospitalsMN$73Illinois: median $111 across 55 hospitalsIL$111Wisconsin: median $83 across 57 hospitalsWI$83Michigan: median $98 across 56 hospitalsMI$98New York: median $54 across 58 hospitalsNY$54Massachusetts: median $84 across 22 hospitalsMA$84Oregon: median $56 across 11 hospitalsOR$56Nevada: 5 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 5 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $128 across 23 hospitalsIA$128Indiana: median $54 across 59 hospitalsIN$54Ohio: median $121 across 96 hospitalsOH$121Pennsylvania: median $40 across 61 hospitalsPA$40New Jersey: median $30 across 37 hospitalsNJ$30Connecticut: 9 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 $72 across 72 hospitalsCA$72Utah: 9 hospitals filed a usable price — fewer than 10, so no figureUTColorado: median $110 across 34 hospitalsCO$110Nebraska: median $89 across 31 hospitalsNE$89Missouri: median $47 across 40 hospitalsMO$47Kentucky: median $167 across 23 hospitalsKY$167West Virginia: median $63 across 23 hospitalsWV$63Virginia: median $116 across 37 hospitalsVA$116Maryland: median $53 across 22 hospitalsMD$53Delaware: 3 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $123 across 22 hospitalsAZ$123New Mexico: 3 hospitals filed a usable price — fewer than 10, so no figureNMKansas: median $100 across 23 hospitalsKS$100Arkansas: median $52 across 13 hospitalsAR$52Tennessee: median $36 across 37 hospitalsTN$36North Carolina: median $208 across 66 hospitalsNC$208South Carolina: median $79 across 32 hospitalsSC$79Oklahoma: median $48 across 28 hospitalsOK$48Louisiana: median $26 across 28 hospitalsLA$26Mississippi: median $26 across 22 hospitalsMS$26Alabama: median $53 across 10 hospitalsAL$53Georgia: median $59 across 56 hospitalsGA$59Hawaii: 6 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $117 across 96 hospitalsTX$117Florida: median $57 across 84 hospitalsFL$57
Cash price by state, most expensive first. National median $75. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
North Carolina NC66$208+178%$61 – $245
Kentucky KY23$167+124%$33 – $298
Iowa IA23$128+71%$86 – $128
Arizona AZ22$123+64%$40 – $218
Ohio OH96$121+62%$62 – $167
Texas TX96$117+56%$56 – $190
Virginia VA37$116+54%$52 – $140
Illinois IL55$111+49%$50 – $312
Colorado CO34$110+47%$37 – $304
Kansas KS23$100+34%$31 – $320
Michigan MI56$98+32%$37 – $166
Nebraska NE31$89+20%$46 – $140
Washington WA44$85+13%$43 – $130
Massachusetts MA22$84+12%$69 – $146
Wisconsin WI57$83+10%$57 – $175
South Carolina SC32$79+6%$30 – $104
Minnesota MN56$73−2%$23 – $211
California CA72$72−4%$17 – $102
West Virginia WV23$63−16%$63 – $83
Georgia GA56$59−21%$39 – $218
Florida FL84$57−24%$22 – $110
Oregon OR11$56−25%$22 – $109
New York NY58$54−27%$27 – $219
Indiana IN59$54−28%$34 – $157
Alabama AL10$53−29%$24 – $60
Maryland MD22$53−29%$42 – $64
Arkansas AR13$52−30%$45 – $250
Oklahoma OK28$48−36%$46 – $64
Missouri MO40$47−37%$44 – $131
Pennsylvania PA61$40−46%$24 – $181
Tennessee TN37$36−52%$20 – $54
New Jersey NJ37$30−60%$27 – $31
Mississippi MS22$26−66%$15 – $105
Louisiana LA28$26−66%$10 – $95
Connecticut CT9not enough hospitals filed a usable price
Utah UT9not enough hospitals filed a usable price
Maine ME8not enough hospitals filed a usable price
Alaska AK7not enough hospitals filed a usable price
North Dakota ND7not enough hospitals filed a usable price
New Hampshire NH7not enough hospitals filed a usable price
Hawaii HI6not enough hospitals filed a usable price
Montana MT6not enough hospitals filed a usable price
Nevada NV5not enough hospitals filed a usable price
Wyoming WY5not enough hospitals filed a usable price
Vermont VT4not enough hospitals filed a usable price
Delaware DE3not enough hospitals filed a usable price
Idaho ID3not enough hospitals filed a usable price
New Mexico NM3not enough hospitals filed a usable price
Rhode Island RI3not enough hospitals filed a usable price
South Dakota SD3not 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 $75.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,251$73$31 – $161
Children’s37$109$46 – $251
Critical access228$79$44 – $177
Ownership
For-profit197$82$33 – $218
Government191$70$34 – $204
Non-profit1,128$74$32 – $161
System affiliation
Part of a system1,349$75$31 – $169
Independent173$78$34 – $140

Cash price vs list price

Median list price (chargemaster)$138
Median cash price$75
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

1,069 hospitals filed a usable inpatient cash price for this code. The median is $81 and the average of the middle 60% is $88; most fall between $37 and $167.

Cash price percentiles, inpatient, across 1,069 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$44$81$146$239

The most expensive tenth of hospitals charges at least 9.7× what the cheapest tenth charges ($25 vs $239).

Of the 1,188 hospitals that filed this code inpatient, 1,069 gave a usable cash price; 73 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 46 a list price only.

How complete is this

1,522 of the 3,956 hospitals with a price file in our corpus (38%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 1,640 hospitals that filed this code at all gave us
Usable cash price — counted1,522
Cash price carrying a plausibility flag — shown on the compare tool, excluded here75
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 — excluded42
Hospitals that filed this code1,640

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 Microscopic examination (bacterial smear, culture, toxicology) family.

Hospitals file this code under descriptions such as HC Additional Cells Counted.

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 cells counted in a chromosome study (CPT 88285) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-88285-extra-cells-counted-in-a-chromosome-study