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Procedure price report · Laboratory - Chemistry and Hematology

Blood osmolality test

CPT 83930the billing code this page is about

Measures the concentration of dissolved particles in a blood sample, reflecting the body's fluid and salt balance.

Hospitals typically charge $54 cash for this outpatient procedure — the median across 3,308 hospitals that filed a usable cash price; the average of the middle 60% is $58. Most fall between $24 and $114 (20th–80th percentile).

Hospitals
3,308
States
50
Filings dated
Aug 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 3,308 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
$14$29$54$97$184

The most expensive tenth of hospitals charges at least 13× what the cheapest tenth charges ($14 vs $184).

How the prices are spread

$9 – $12: 99 hospitals$9$12 – $17: 157 hospitals$17 – $24: 239 hospitals$17$24 – $34: 367 hospitals$34 – $48: 408 hospitals$34$48 – $67: 557 hospitals$67 – $95: 473 hospitals$67$95 – $133: 331 hospitals$133 – $188: 189 hospitals$133$188 – $265: 159 hospitals$188median $54price bands are equal on a log scale
Hospitals per price band (2,979 of 3,308 — the bands cover the 5th to 95th percentile)
FromToHospitals
$9$1299
$12$17157
$17$24239
$24$34367
$34$48408
$48$67557
$67$95473
$95$133331
$133$188189
$188$265159

By state

The median cash price in each state, against the national median of $54.

Alaska: median $165 across 17 hospitalsAK$165Maine: median $43 across 28 hospitalsME$43Vermont: median $61 across 14 hospitalsVT$61New Hampshire: median $46 across 25 hospitalsNH$46Washington: median $57 across 76 hospitalsWA$57Idaho: median $48 across 24 hospitalsID$48Montana: median $74 across 29 hospitalsMT$74North Dakota: median $51 across 34 hospitalsND$51Minnesota: median $53 across 104 hospitalsMN$53Illinois: median $84 across 141 hospitalsIL$84Wisconsin: median $56 across 106 hospitalsWI$56Michigan: median $30 across 95 hospitalsMI$30New York: median $29 across 103 hospitalsNY$29Massachusetts: median $45 across 53 hospitalsMA$45Oregon: median $56 across 48 hospitalsOR$56Nevada: median $54 across 21 hospitalsNV$54Wyoming: median $64 across 16 hospitalsWY$64South Dakota: median $110 across 38 hospitalsSD$110Iowa: median $50 across 87 hospitalsIA$50Indiana: median $49 across 94 hospitalsIN$49Ohio: median $47 across 141 hospitalsOH$47Pennsylvania: median $37 across 122 hospitalsPA$37New Jersey: median $8 across 54 hospitalsNJ$8Connecticut: median $35 across 23 hospitalsCT$35Rhode Island: median $53 across 10 hospitalsRI$53California: median $112 across 156 hospitalsCA$112Utah: median $56 across 39 hospitalsUT$56Colorado: median $71 across 68 hospitalsCO$71Nebraska: median $94 across 79 hospitalsNE$94Missouri: median $45 across 75 hospitalsMO$45Kentucky: median $60 across 69 hospitalsKY$60West Virginia: median $43 across 41 hospitalsWV$43Virginia: median $57 across 73 hospitalsVA$57Maryland: median $27 across 41 hospitalsMD$27Delaware: 7 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $77 across 42 hospitalsAZ$77New Mexico: median $62 across 29 hospitalsNM$62Kansas: median $45 across 85 hospitalsKS$45Arkansas: median $28 across 39 hospitalsAR$28Tennessee: median $29 across 83 hospitalsTN$29North Carolina: median $46 across 84 hospitalsNC$46South Carolina: median $71 across 51 hospitalsSC$71Oklahoma: median $46 across 73 hospitalsOK$46Louisiana: median $30 across 49 hospitalsLA$30Mississippi: median $32 across 55 hospitalsMS$32Alabama: median $47 across 44 hospitalsAL$47Georgia: median $66 across 109 hospitalsGA$66Hawaii: median $65 across 19 hospitalsHI$65Texas: median $94 across 242 hospitalsTX$94Florida: median $127 across 153 hospitalsFL$127
Cash price by state, most expensive first. National median $54. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Alaska AK17$165+207%$109 – $257
Florida FL153$127+137%$19 – $486
California CA156$112+110%$30 – $200
South Dakota SD38$110+104%$78 – $165
Texas TX242$94+76%$37 – $209
Nebraska NE79$94+75%$40 – $132
Illinois IL141$84+56%$42 – $119
Arizona AZ42$77+43%$29 – $298
Montana MT29$74+38%$34 – $101
South Carolina SC51$71+32%$43 – $111
Colorado CO68$71+32%$39 – $161
Georgia GA109$66+23%$23 – $137
Hawaii HI19$65+21%$41 – $81
Wyoming WY16$64+20%$34 – $74
New Mexico NM29$62+15%$34 – $96
Vermont VT14$61+14%$32 – $113
Kentucky KY69$60+13%$30 – $158
Washington WA76$57+7%$38 – $86
Virginia VA73$57+6%$35 – $194
Utah UT39$56+5%$48 – $111
Wisconsin WI106$56+5%$38 – $69
Oregon OR48$56+4%$28 – $86
Nevada NV21$540%$24 – $97
Minnesota MN104$53−1%$31 – $80
Rhode Island RI10$53−2%$15 – $71
North Dakota ND34$51−5%$13 – $77
Iowa IA87$50−6%$34 – $77
Indiana IN94$49−9%$15 – $96
Idaho ID24$48−10%$29 – $93
Alabama AL44$47−13%$22 – $157
Ohio OH141$47−13%$23 – $74
North Carolina NC84$46−14%$25 – $75
Oklahoma OK73$46−14%$20 – $72
New Hampshire NH25$46−15%$32 – $111
Missouri MO75$45−15%$29 – $90
Kansas KS85$45−16%$32 – $66
Massachusetts MA53$45−16%$25 – $84
Maine ME28$43−20%$17 – $109
West Virginia WV41$43−21%$24 – $81
Pennsylvania PA122$37−32%$12 – $111
Connecticut CT23$35−34%$24 – $55
Mississippi MS55$32−40%$19 – $63
Louisiana LA49$30−44%$16 – $54
Michigan MI95$30−44%$18 – $53
Tennessee TN83$29−45%$13 – $55
New York NY103$29−46%$9 – $100
Arkansas AR39$28−48%$9 – $41
Maryland MD41$27−49%$21 – $33
New Jersey NJ54$8−86%$7 – $45
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 $54.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care2,290$51$22 – $122
Children’s66$67$37 – $131
Critical access942$59$29 – $99
Ownership
For-profit460$87$28 – $319
Government621$53$27 – $97
Non-profit2,217$52$23 – $104
System affiliation
Part of a system2,692$56$24 – $117
Independent616$49$25 – $94

Cash price vs list price

Median list price (chargemaster)$92
Median cash price$54
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

2,237 hospitals filed a usable inpatient cash price for this code. The median is $56 and the average of the middle 60% is $61; most fall between $26 and $115.

Cash price percentiles, inpatient, across 2,237 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
$16$30$56$101$171

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($16 vs $171).

Of the 2,463 hospitals that filed this code inpatient, 2,237 gave a usable cash price; 118 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 108 a list price only.

How complete is this

3,308 of the 3,956 hospitals with a price file in our corpus (84%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 3,607 hospitals that filed this code at all gave us
Usable cash price — counted3,308
Cash price carrying a plausibility flag — shown on the compare tool, excluded here167
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded2
A list price only, no cash figure — excluded130
Hospitals that filed this code3,607

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 Osmolality;Blood.

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 osmolality test (CPT 83930) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-83930-blood-osmolality-test