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Procedure price report · Laboratory - Chemistry and Hematology

Mass spectrometry test for a substance not otherwise listed

CPT 83789the billing code this page is about

A laboratory analysis using mass spectrometry to identify or measure a non-drug substance that has no specific test code of its own.

Hospitals typically charge $77 cash for this outpatient procedure — the median across 2,731 hospitals that filed a usable cash price; the average of the middle 60% is $85. Most fall between $31 and $171 (20th–80th percentile).

Hospitals
2,731
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 2,731 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
$20$38$77$145$250

The most expensive tenth of hospitals charges at least 12× what the cheapest tenth charges ($20 vs $250).

How the prices are spread

$16 – $22: 155 hospitals$16$22 – $30: 242 hospitals$30 – $41: 218 hospitals$30$41 – $56: 272 hospitals$56 – $77: 348 hospitals$56$77 – $105: 296 hospitals$105 – $144: 375 hospitals$105$144 – $196: 275 hospitals$196 – $267: 184 hospitals$196$267 – $365: 96 hospitals$267median $77price bands are equal on a log scale
Hospitals per price band (2,461 of 2,731 — the bands cover the 5th to 95th percentile)
FromToHospitals
$16$22155
$22$30242
$30$41218
$41$56272
$56$77348
$77$105296
$105$144375
$144$196275
$196$267184
$267$36596

By state

The median cash price in each state, against the national median of $77.

Alaska: median $109 across 14 hospitalsAK$109Maine: median $112 across 25 hospitalsME$112Vermont: median $132 across 12 hospitalsVT$132New Hampshire: median $78 across 24 hospitalsNH$78Washington: median $105 across 61 hospitalsWA$105Idaho: median $110 across 20 hospitalsID$110Montana: median $75 across 25 hospitalsMT$75North Dakota: median $100 across 24 hospitalsND$100Minnesota: median $74 across 92 hospitalsMN$74Illinois: median $112 across 120 hospitalsIL$112Wisconsin: median $100 across 95 hospitalsWI$100Michigan: median $34 across 62 hospitalsMI$34New York: median $61 across 94 hospitalsNY$61Massachusetts: median $104 across 50 hospitalsMA$104Oregon: median $73 across 39 hospitalsOR$73Nevada: median $79 across 18 hospitalsNV$79Wyoming: median $55 across 13 hospitalsWY$55South Dakota: median $85 across 25 hospitalsSD$85Iowa: median $102 across 69 hospitalsIA$102Indiana: median $62 across 89 hospitalsIN$62Ohio: median $108 across 127 hospitalsOH$108Pennsylvania: median $74 across 96 hospitalsPA$74New Jersey: median $27 across 54 hospitalsNJ$27Connecticut: median $99 across 21 hospitalsCT$99Rhode Island: median $67 across 10 hospitalsRI$67California: median $31 across 108 hospitalsCA$31Utah: median $223 across 38 hospitalsUT$223Colorado: median $44 across 57 hospitalsCO$44Nebraska: median $87 across 64 hospitalsNE$87Missouri: median $42 across 67 hospitalsMO$42Kentucky: median $79 across 59 hospitalsKY$79West Virginia: median $46 across 33 hospitalsWV$46Virginia: median $93 across 57 hospitalsVA$93Maryland: median $106 across 40 hospitalsMD$106Delaware: 6 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $84 across 35 hospitalsAZ$84New Mexico: median $88 across 23 hospitalsNM$88Kansas: median $168 across 62 hospitalsKS$168Arkansas: median $60 across 25 hospitalsAR$60Tennessee: median $32 across 69 hospitalsTN$32North Carolina: median $114 across 75 hospitalsNC$114South Carolina: median $128 across 47 hospitalsSC$128Oklahoma: median $72 across 67 hospitalsOK$72Louisiana: median $44 across 39 hospitalsLA$44Mississippi: median $31 across 44 hospitalsMS$31Alabama: median $81 across 27 hospitalsAL$81Georgia: median $61 across 86 hospitalsGA$61Hawaii: median $142 across 16 hospitalsHI$142Texas: median $115 across 178 hospitalsTX$115Florida: median $49 across 130 hospitalsFL$49
Cash price by state, most expensive first. National median $77. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Utah UT38$223+190%$66 – $262
Kansas KS62$168+119%$53 – $323
Hawaii HI16$142+84%$134 – $218
Vermont VT12$132+71%$81 – $359
South Carolina SC47$128+67%$55 – $179
Texas TX178$115+50%$34 – $202
North Carolina NC75$114+49%$47 – $540
Maine ME25$112+46%$74 – $145
Illinois IL120$112+46%$42 – $200
Idaho ID20$110+43%$23 – $181
Alaska AK14$109+42%$50 – $277
Ohio OH127$108+41%$71 – $215
Maryland MD40$106+38%$71 – $128
Washington WA61$105+37%$57 – $179
Massachusetts MA50$104+35%$53 – $173
Iowa IA69$102+33%$50 – $158
North Dakota ND24$100+31%$59 – $150
Wisconsin WI95$100+30%$32 – $133
Connecticut CT21$99+28%$47 – $181
Virginia VA57$93+21%$70 – $195
New Mexico NM23$88+15%$51 – $211
Nebraska NE64$87+13%$33 – $169
South Dakota SD25$85+11%$35 – $175
Arizona AZ35$84+9%$28 – $211
Alabama AL27$81+6%$51 – $170
Nevada NV18$79+3%$35 – $186
Kentucky KY59$79+3%$35 – $113
New Hampshire NH24$78+1%$38 – $218
Montana MT25$75−2%$53 – $123
Minnesota MN92$74−4%$41 – $150
Pennsylvania PA96$74−4%$27 – $202
Oregon OR39$73−4%$52 – $140
Oklahoma OK67$72−6%$31 – $109
Rhode Island RI10$67−13%$42 – $144
Indiana IN89$62−20%$35 – $128
New York NY94$61−20%$24 – $123
Georgia GA86$61−21%$38 – $132
Arkansas AR25$60−22%$24 – $116
Wyoming WY13$55−29%$31 – $162
Florida FL130$49−36%$20 – $121
West Virginia WV33$46−40%$23 – $121
Louisiana LA39$44−42%$24 – $82
Colorado CO57$44−43%$19 – $139
Missouri MO67$42−45%$17 – $139
Michigan MI62$34−56%$19 – $75
Tennessee TN69$32−59%$17 – $87
California CA108$31−59%$15 – $92
Mississippi MS44$31−60%$20 – $87
New Jersey NJ54$27−65%$24 – $84
Delaware DE6not 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 $77.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,938$71$27 – $163
Children’s59$89$34 – $145
Critical access724$99$48 – $182
Ownership
For-profit365$81$34 – $205
Government493$83$32 – $172
Non-profit1,863$75$30 – $163
System affiliation
Part of a system2,247$75$30 – $170
Independent484$80$37 – $177

Cash price vs list price

Median list price (chargemaster)$128
Median cash price$77
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

1,876 hospitals filed a usable inpatient cash price for this code. The median is $77 and the average of the middle 60% is $84; most fall between $33 and $162.

Cash price percentiles, inpatient, across 1,876 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
$22$41$77$138$223

The most expensive tenth of hospitals charges at least 10× what the cheapest tenth charges ($22 vs $223).

Of the 2,077 hospitals that filed this code inpatient, 1,876 gave a usable cash price; 116 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 85 a list price only.

How complete is this

2,731 of the 3,956 hospitals with a price file in our corpus (69%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 2,996 hospitals that filed this code at all gave us
Usable cash price — counted2,731
Cash price carrying a plausibility flag — shown on the compare tool, excluded here158
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 — excluded105
Hospitals that filed this code2,996

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 Iodine, Urine.

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, “Mass spectrometry test for a substance not otherwise listed (CPT 83789) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-83789-mass-spectrometry-test-for-a-substance-not-otherwise-listed