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Procedure price report · Laboratory - Chemistry and Hematology

Von Willebrand factor activity blood test

CPT 85245the billing code this page is about

A blood test that measures how well von Willebrand factor works, using the ristocetin cofactor method.

Hospitals typically charge $113 cash for this outpatient procedure — the median across 2,945 hospitals that filed a usable cash price; the average of the middle 60% is $118. Most fall between $47 and $230 (20th–80th percentile).

Hospitals
2,945
States
50
Filings dated
Dec 2022 – 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 2,945 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
$31$56$113$193$330

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($31 vs $330).

How the prices are spread

$23 – $32: 170 hospitals$23$32 – $44: 218 hospitals$44 – $60: 257 hospitals$44$60 – $81: 294 hospitals$81 – $111: 370 hospitals$81$111 – $152: 432 hospitals$152 – $208: 389 hospitals$152$208 – $284: 269 hospitals$284 – $387: 184 hospitals$284$387 – $529: 70 hospitals$387median $113price bands are equal on a log scale
Hospitals per price band (2,653 of 2,945 — the bands cover the 5th to 95th percentile)
FromToHospitals
$23$32170
$32$44218
$44$60257
$60$81294
$81$111370
$111$152432
$152$208389
$208$284269
$284$387184
$387$52970

By state

The median cash price in each state, against the national median of $113.

Alaska: median $215 across 14 hospitalsAK$215Maine: median $113 across 27 hospitalsME$113Vermont: median $139 across 13 hospitalsVT$139New Hampshire: median $116 across 24 hospitalsNH$116Washington: median $142 across 69 hospitalsWA$142Idaho: median $119 across 19 hospitalsID$119Montana: median $166 across 19 hospitalsMT$166North Dakota: median $116 across 28 hospitalsND$116Minnesota: median $75 across 74 hospitalsMN$75Illinois: median $155 across 127 hospitalsIL$155Wisconsin: median $158 across 98 hospitalsWI$158Michigan: median $34 across 68 hospitalsMI$34New York: median $69 across 114 hospitalsNY$69Massachusetts: median $142 across 51 hospitalsMA$142Oregon: median $70 across 42 hospitalsOR$70Nevada: median $100 across 18 hospitalsNV$100Wyoming: median $139 across 14 hospitalsWY$139South Dakota: median $188 across 21 hospitalsSD$188Iowa: median $102 across 61 hospitalsIA$102Indiana: median $87 across 91 hospitalsIN$87Ohio: median $103 across 138 hospitalsOH$103Pennsylvania: median $117 across 120 hospitalsPA$117New Jersey: median $25 across 54 hospitalsNJ$25Connecticut: median $114 across 21 hospitalsCT$114Rhode Island: median $97 across 10 hospitalsRI$97California: median $68 across 117 hospitalsCA$68Utah: median $142 across 40 hospitalsUT$142Colorado: median $132 across 62 hospitalsCO$132Nebraska: median $166 across 59 hospitalsNE$166Missouri: median $117 across 70 hospitalsMO$117Kentucky: median $186 across 66 hospitalsKY$186West Virginia: median $108 across 34 hospitalsWV$108Virginia: median $142 across 73 hospitalsVA$142Maryland: median $159 across 39 hospitalsMD$159Delaware: 5 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $176 across 37 hospitalsAZ$176New Mexico: median $130 across 19 hospitalsNM$130Kansas: median $103 across 66 hospitalsKS$103Arkansas: median $59 across 28 hospitalsAR$59Tennessee: median $64 across 75 hospitalsTN$64North Carolina: median $114 across 85 hospitalsNC$114South Carolina: median $166 across 49 hospitalsSC$166Oklahoma: median $104 across 68 hospitalsOK$104Louisiana: median $77 across 49 hospitalsLA$77Mississippi: median $82 across 44 hospitalsMS$82Alabama: median $128 across 37 hospitalsAL$128Georgia: median $116 across 100 hospitalsGA$116Hawaii: median $143 across 15 hospitalsHI$143Texas: median $94 across 224 hospitalsTX$94Florida: median $80 across 149 hospitalsFL$80
Cash price by state, most expensive first. National median $113. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Alaska AK14$215+91%$79 – $303
South Dakota SD21$188+67%$96 – $281
Kentucky KY66$186+64%$69 – $316
Arizona AZ37$176+56%$41 – $262
South Carolina SC49$166+47%$89 – $351
Montana MT19$166+47%$68 – $226
Nebraska NE59$166+47%$82 – $277
Maryland MD39$159+40%$126 – $195
Wisconsin WI98$158+40%$94 – $230
Illinois IL127$155+38%$62 – $265
Hawaii HI15$143+27%$18 – $305
Washington WA69$142+26%$82 – $248
Virginia VA73$142+26%$40 – $279
Utah UT40$142+26%$130 – $265
Massachusetts MA51$142+25%$74 – $223
Wyoming WY14$139+23%$47 – $227
Vermont VT13$139+23%$115 – $299
Colorado CO62$132+17%$72 – $222
New Mexico NM19$130+15%$61 – $262
Alabama AL37$128+13%$42 – $264
Idaho ID19$119+5%$39 – $172
Missouri MO70$117+4%$55 – $248
Pennsylvania PA120$117+4%$36 – $270
Georgia GA100$116+3%$78 – $252
North Dakota ND28$116+3%$40 – $175
New Hampshire NH24$116+3%$70 – $378
Connecticut CT21$114+1%$85 – $191
North Carolina NC85$114+1%$63 – $231
Maine ME27$1130%$68 – $235
West Virginia WV34$108−5%$64 – $209
Oklahoma OK68$104−8%$51 – $172
Kansas KS66$103−8%$52 – $194
Ohio OH138$103−9%$73 – $231
Iowa IA61$102−9%$87 – $198
Nevada NV18$100−11%$35 – $175
Rhode Island RI10$97−15%$53 – $183
Texas TX224$94−17%$36 – $357
Indiana IN91$87−23%$44 – $149
Mississippi MS44$82−28%$41 – $130
Florida FL149$80−29%$40 – $167
Louisiana LA49$77−31%$51 – $130
Minnesota MN74$75−34%$50 – $231
Oregon OR42$70−38%$29 – $158
New York NY114$69−39%$28 – $149
California CA117$68−40%$27 – $123
Tennessee TN75$64−43%$40 – $192
Arkansas AR28$59−48%$31 – $135
Michigan MI68$34−70%$23 – $149
New Jersey NJ54$25−78%$23 – $66
Delaware DE5not 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 $113.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care2,150$104$42 – $230
Children’s52$131$62 – $355
Critical access733$132$66 – $230
Ownership
For-profit420$132$52 – $477
Government495$110$47 – $226
Non-profit2,020$110$45 – $198
System affiliation
Part of a system2,418$113$46 – $230
Independent527$113$56 – $215

Cash price vs list price

Median list price (chargemaster)$194
Median cash price$113
Cash as a share of list, median hospital63%

At the typical hospital, asking for the cash price cuts the list price by about 37%. 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

2,026 hospitals filed a usable inpatient cash price for this code. The median is $115 and the average of the middle 60% is $117; most fall between $50 and $219.

Cash price percentiles, inpatient, across 2,026 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
$34$60$115$184$315

The most expensive tenth of hospitals charges at least 9.3× what the cheapest tenth charges ($34 vs $315).

Of the 2,232 hospitals that filed this code inpatient, 2,026 gave a usable cash price; 110 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 96 a list price only.

How complete is this

2,945 of the 3,956 hospitals with a price file in our corpus (74%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 3,209 hospitals that filed this code at all gave us
Usable cash price — counted2,945
Cash price carrying a plausibility flag — shown on the compare tool, excluded here149
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded1
A list price only, no cash figure — excluded114
Hospitals that filed this code3,209

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 July 20, 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 Laboratory - Chemistry and Hematology family.

Hospitals file this code under descriptions such as HC Ristocetin Co-Factor.

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, “Von Willebrand factor activity blood test (CPT 85245) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-85245-von-willebrand-factor-activity-blood-test