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Procedure price report · Pathology

Flow cytometry cell marker testing, each added marker

CPT 88185the billing code this page is about

Laboratory work for each additional cell marker tested by flow cytometer beyond the first; one unit equals one extra marker, technical work only.

Hospitals typically charge $67 cash for this outpatient procedure — the median across 3,026 hospitals that filed a usable cash price; the average of the middle 60% is $71. Most fall between $26 and $139 (20th–80th percentile).

Hospitals
3,026
States
50
Filings dated
Mar 2023 – 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 3,026 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
$15$32$67$124$200

The most expensive tenth of hospitals charges at least 13× what the cheapest tenth charges ($15 vs $200).

How the prices are spread

$11 – $15: 134 hospitals$11$15 – $21: 138 hospitals$21 – $29: 286 hospitals$21$29 – $41: 272 hospitals$41 – $57: 335 hospitals$41$57 – $80: 439 hospitals$80 – $112: 415 hospitals$80$112 – $157: 396 hospitals$157 – $220: 211 hospitals$157$220 – $308: 100 hospitals$220median $67price bands are equal on a log scale
Hospitals per price band (2,726 of 3,026 — the bands cover the 5th to 95th percentile)
FromToHospitals
$11$15134
$15$21138
$21$29286
$29$41272
$41$57335
$57$80439
$80$112415
$112$157396
$157$220211
$220$308100

By state

The median cash price in each state, against the national median of $67.

Alaska: median $102 across 14 hospitalsAK$102Maine: median $64 across 28 hospitalsME$64Vermont: median $77 across 14 hospitalsVT$77New Hampshire: median $83 across 24 hospitalsNH$83Washington: median $84 across 69 hospitalsWA$84Idaho: median $105 across 22 hospitalsID$105Montana: median $57 across 26 hospitalsMT$57North Dakota: median $98 across 24 hospitalsND$98Minnesota: median $69 across 106 hospitalsMN$69Illinois: median $78 across 130 hospitalsIL$78Wisconsin: median $98 across 103 hospitalsWI$98Michigan: median $40 across 89 hospitalsMI$40New York: median $67 across 102 hospitalsNY$67Massachusetts: median $123 across 49 hospitalsMA$123Oregon: median $56 across 46 hospitalsOR$56Nevada: median $83 across 17 hospitalsNV$83Wyoming: median $60 across 14 hospitalsWY$60South Dakota: median $122 across 35 hospitalsSD$122Iowa: median $79 across 78 hospitalsIA$79Indiana: median $51 across 93 hospitalsIN$51Ohio: median $83 across 136 hospitalsOH$83Pennsylvania: median $125 across 105 hospitalsPA$125New Jersey: median $58 across 41 hospitalsNJ$58Connecticut: median $122 across 23 hospitalsCT$122Rhode Island: 9 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $21 across 138 hospitalsCA$21Utah: median $153 across 39 hospitalsUT$153Colorado: median $70 across 65 hospitalsCO$70Nebraska: median $69 across 70 hospitalsNE$69Missouri: median $50 across 71 hospitalsMO$50Kentucky: median $40 across 64 hospitalsKY$40West Virginia: median $29 across 38 hospitalsWV$29Virginia: median $90 across 60 hospitalsVA$90Maryland: median $125 across 40 hospitalsMD$125Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $77 across 36 hospitalsAZ$77New Mexico: median $77 across 24 hospitalsNM$77Kansas: median $84 across 72 hospitalsKS$84Arkansas: median $50 across 35 hospitalsAR$50Tennessee: median $50 across 76 hospitalsTN$50North Carolina: median $55 across 82 hospitalsNC$55South Carolina: median $86 across 47 hospitalsSC$86Oklahoma: median $38 across 58 hospitalsOK$38Louisiana: median $35 across 46 hospitalsLA$35Mississippi: median $27 across 53 hospitalsMS$27Alabama: median $65 across 38 hospitalsAL$65Georgia: median $60 across 92 hospitalsGA$60Hawaii: median $129 across 17 hospitalsHI$129Texas: median $58 across 218 hospitalsTX$58Florida: median $28 across 143 hospitalsFL$28
Cash price by state, most expensive first. National median $67. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Utah UT39$153+130%$37 – $180
Hawaii HI17$129+93%$73 – $190
Pennsylvania PA105$125+88%$37 – $190
Maryland MD40$125+88%$89 – $160
Massachusetts MA49$123+85%$87 – $182
Connecticut CT23$122+83%$71 – $150
South Dakota SD35$122+83%$57 – $211
Idaho ID22$105+58%$53 – $112
Alaska AK14$102+53%$33 – $319
North Dakota ND24$98+48%$72 – $153
Wisconsin WI103$98+47%$47 – $151
Virginia VA60$90+35%$62 – $257
South Carolina SC47$86+30%$36 – $105
Washington WA69$84+27%$43 – $144
Kansas KS72$84+26%$39 – $133
Ohio OH136$83+25%$39 – $117
New Hampshire NH24$83+25%$30 – $189
Nevada NV17$83+24%$26 – $118
Iowa IA78$79+18%$34 – $116
Illinois IL130$78+17%$34 – $166
Vermont VT14$77+16%$41 – $155
New Mexico NM24$77+16%$41 – $279
Arizona AZ36$77+15%$39 – $239
Colorado CO65$70+4%$45 – $192
Nebraska NE70$69+4%$26 – $212
Minnesota MN106$69+3%$26 – $134
New York NY102$670%$33 – $280
Alabama AL38$65−2%$25 – $198
Maine ME28$64−4%$34 – $104
Georgia GA92$60−10%$43 – $121
Wyoming WY14$60−10%$30 – $87
Texas TX218$58−13%$27 – $170
New Jersey NJ41$58−13%$38 – $102
Montana MT26$57−14%$23 – $125
Oregon OR46$56−16%$20 – $120
North Carolina NC82$55−17%$16 – $136
Indiana IN93$51−23%$29 – $111
Missouri MO71$50−25%$36 – $80
Arkansas AR35$50−25%$19 – $87
Tennessee TN76$50−25%$19 – $98
Kentucky KY64$40−39%$24 – $94
Michigan MI89$40−40%$13 – $81
Oklahoma OK58$38−42%$12 – $80
Louisiana LA46$35−48%$10 – $91
West Virginia WV38$29−57%$23 – $70
Florida FL143$28−58%$13 – $124
Mississippi MS53$27−59%$15 – $60
California CA138$21−68%$10 – $71
Rhode Island RI9not enough hospitals filed a usable price
Delaware DE7not 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 $67.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care2,168$61$25 – $136
Children’s50$68$23 – $126
Critical access798$80$34 – $146
Ownership
For-profit435$65$27 – $181
Government505$66$24 – $136
Non-profit2,076$67$26 – $136
System affiliation
Part of a system2,510$68$27 – $144
Independent516$58$23 – $124

Cash price vs list price

Median list price (chargemaster)$113
Median cash price$67
Cash as a share of list, median hospital65%

At the typical hospital, asking for the cash price cuts the list price by about 35%. 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

2,114 hospitals filed a usable inpatient cash price for this code. The median is $66 and the average of the middle 60% is $71; most fall between $26 and $136.

Cash price percentiles, inpatient, across 2,114 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
$15$33$66$123$191

The most expensive tenth of hospitals charges at least 13× what the cheapest tenth charges ($15 vs $191).

Of the 2,360 hospitals that filed this code inpatient, 2,114 gave a usable cash price; 139 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 107 a list price only.

How complete is this

3,026 of the 3,956 hospitals with a price file in our corpus (76%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 3,359 hospitals that filed this code at all gave us
Usable cash price — counted3,026
Cash price carrying a plausibility flag — shown on the compare tool, excluded here157
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded1
An estimate rather than a filed cash price — excluded1
A list price only, no cash figure — excluded174
Hospitals that filed this code3,359

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 Pathology family.

Hospitals file this code under descriptions such as HC Flow Cytom, Ea Addl Marker.

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, “Flow cytometry cell marker testing, each added marker (CPT 88185) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-88185-flow-cytometry-cell-marker-testing-each-added-marker