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Procedure price report · Laboratory - Chemistry and Hematology

Blood test for total hydroxyproline

CPT 83505the billing code this page is about

Measures the total amount of hydroxyproline, an amino acid found in collagen, in a specimen.

Hospitals typically charge $110 cash for this outpatient procedure — the median across 633 hospitals that filed a usable cash price; the average of the middle 60% is $124. Most fall between $40 and $247 (20th–80th percentile).

Hospitals
633
States
47
Filings dated
Jan 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 633 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
$27$44$110$228$405

The most expensive tenth of hospitals charges at least 15× what the cheapest tenth charges ($27 vs $405).

How the prices are spread

$24 – $34: 68 hospitals$24$34 – $46: 78 hospitals$46 – $64: 58 hospitals$46$64 – $88: 31 hospitals$88 – $121: 67 hospitals$88$121 – $168: 67 hospitals$168 – $231: 79 hospitals$168$231 – $319: 65 hospitals$319 – $440: 34 hospitals$319$440 – $607: 25 hospitals$440median $110price bands are equal on a log scale
Hospitals per price band (572 of 633 — the bands cover the 5th to 95th percentile)
FromToHospitals
$24$3468
$34$4678
$46$6458
$64$8831
$88$12167
$121$16867
$168$23179
$231$31965
$319$44034
$440$60725

By state

The median cash price in each state, against the national median of $110.

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: no hospital in the corpus filed a usable priceNHWashington: median $45 across 12 hospitalsWA$45Idaho: 2 hospitals filed a usable price — fewer than 10, so no figureIDMontana: no hospital in the corpus filed a usable priceMTNorth Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: 1 hospital filed a usable price — fewer than 10, so no figureMNIllinois: median $179 across 32 hospitalsIL$179Wisconsin: 5 hospitals filed a usable price — fewer than 10, so no figureWIMichigan: median $34 across 14 hospitalsMI$34New York: median $37 across 38 hospitalsNY$37Massachusetts: 8 hospitals filed a usable price — fewer than 10, so no figureMAOregon: 5 hospitals filed a usable price — fewer than 10, so no figureORNevada: 3 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 1 hospital filed a usable price — fewer than 10, so no figureWYSouth Dakota: 1 hospital filed a usable price — fewer than 10, so no figureSDIowa: median $62 across 15 hospitalsIA$62Indiana: median $91 across 37 hospitalsIN$91Ohio: median $54 across 23 hospitalsOH$54Pennsylvania: median $109 across 46 hospitalsPA$109New Jersey: median $27 across 30 hospitalsNJ$27Connecticut: 2 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 $197 across 43 hospitalsCA$197Utah: 3 hospitals filed a usable price — fewer than 10, so no figureUTColorado: median $171 across 15 hospitalsCO$171Nebraska: 1 hospital filed a usable price — fewer than 10, so no figureNEMissouri: median $86 across 19 hospitalsMO$86Kentucky: median $108 across 15 hospitalsKY$108West Virginia: 1 hospital filed a usable price — fewer than 10, so no figureWVVirginia: 9 hospitals filed a usable price — fewer than 10, so no figureVAMaryland: 5 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: median $171 across 12 hospitalsKS$171Arkansas: 5 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $48 across 17 hospitalsTN$48North Carolina: 6 hospitals filed a usable price — fewer than 10, so no figureNCSouth Carolina: 3 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: median $44 across 22 hospitalsOK$44Louisiana: 8 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: 7 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: 7 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $158 across 27 hospitalsGA$158Hawaii: 5 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $186 across 70 hospitalsTX$186Florida: median $45 across 37 hospitalsFL$45
Cash price by state, most expensive first. National median $110. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
California CA43$197+79%$185 – $247
Texas TX70$186+69%$108 – $878
Illinois IL32$179+63%$62 – $257
Kansas KS12$171+55%$129 – $326
Colorado CO15$171+55%$139 – $1,708
Georgia GA27$158+43%$158 – $405
Pennsylvania PA46$109−1%$24 – $284
Kentucky KY15$108−2%$43 – $214
Indiana IN37$91−17%$39 – $125
Missouri MO19$86−22%$35 – $522
Iowa IA15$62−44%$62 – $62
Ohio OH23$54−51%$48 – $193
Tennessee TN17$48−57%$43 – $238
Florida FL37$45−59%$36 – $111
Washington WA12$45−59%$45 – $180
Oklahoma OK22$44−60%$43 – $73
New York NY38$37−67%$24 – $128
Michigan MI14$34−70%$27 – $110
New Jersey NJ30$27−76%$24 – $50
Virginia VA9not enough hospitals filed a usable price
Louisiana LA8not enough hospitals filed a usable price
Massachusetts MA8not enough hospitals filed a usable price
Alabama AL7not enough hospitals filed a usable price
Mississippi MS7not enough hospitals filed a usable price
Maine ME6not enough hospitals filed a usable price
North Carolina NC6not enough hospitals filed a usable price
Arkansas AR5not enough hospitals filed a usable price
Hawaii HI5not enough hospitals filed a usable price
Maryland MD5not enough hospitals filed a usable price
Oregon OR5not enough hospitals filed a usable price
Wisconsin WI5not enough hospitals filed a usable price
Rhode Island RI4not enough hospitals filed a usable price
Alaska AK3not enough hospitals filed a usable price
Arizona AZ3not enough hospitals filed a usable price
North Dakota ND3not enough hospitals filed a usable price
Nevada NV3not enough hospitals filed a usable price
South Carolina SC3not enough hospitals filed a usable price
Utah UT3not enough hospitals filed a usable price
Connecticut CT2not enough hospitals filed a usable price
Idaho ID2not enough hospitals filed a usable price
Minnesota MN1not enough hospitals filed a usable price
Nebraska NE1not enough hospitals filed a usable price
New Mexico NM1not enough hospitals filed a usable price
South Dakota SD1not enough hospitals filed a usable price
Vermont VT1not enough hospitals filed a usable price
West Virginia WV1not 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 $110.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care517$108$36 – $247
Children’s8fewer than 20 hospitals
Critical access106$139$52 – $264
Ownership
For-profit103$186$43 – $809
Government71$110$43 – $222
Non-profit457$106$38 – $234
System affiliation
Part of a system535$110$39 – $247
Independent98$109$44 – $228

Cash price vs list price

Median list price (chargemaster)$230
Median cash price$110
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

389 hospitals filed a usable inpatient cash price for this code. The median is $133 and the average of the middle 60% is $144; most fall between $50 and $247.

Cash price percentiles, inpatient, across 389 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
$43$62$133$210$334

The most expensive tenth of hospitals charges at least 7.8× what the cheapest tenth charges ($43 vs $334).

Of the 430 hospitals that filed this code inpatient, 389 gave a usable cash price; 15 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 26 a list price only.

How complete is this

633 of the 3,956 hospitals with a price file in our corpus (16%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 681 hospitals that filed this code at all gave us
Usable cash price — counted633
Cash price carrying a plausibility flag — shown on the compare tool, excluded here23
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 — excluded24
Hospitals that filed this code681

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 24, 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 Assay Total Hydroxyproline.

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, “Blood test for total hydroxyproline (CPT 83505) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-83505-blood-test-for-total-hydroxyproline