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Procedure price report · Other Laboratory

Clozapine blood level

CPT 80159the billing code this page is about

A blood test that measures the amount of the antipsychotic medication clozapine in the bloodstream.

Hospitals typically charge $68 cash for this outpatient procedure — the median across 2,478 hospitals that filed a usable cash price; the average of the middle 60% is $71. Most fall between $30 and $135 (20th–80th percentile).

Hospitals
2,478
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 2,478 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
$21$35$68$117$199

The most expensive tenth of hospitals charges at least 9.4× what the cheapest tenth charges ($21 vs $199).

How the prices are spread

$15 – $20: 116 hospitals$15$20 – $27: 194 hospitals$27 – $36: 226 hospitals$27$36 – $48: 257 hospitals$48 – $64: 275 hospitals$48$64 – $86: 290 hospitals$86 – $114: 366 hospitals$86$114 – $152: 231 hospitals$152 – $203: 161 hospitals$152$203 – $270: 116 hospitals$203median $68price bands are equal on a log scale
Hospitals per price band (2,232 of 2,478 — the bands cover the 5th to 95th percentile)
FromToHospitals
$15$20116
$20$27194
$27$36226
$36$48257
$48$64275
$64$86290
$86$114366
$114$152231
$152$203161
$203$270116

By state

The median cash price in each state, against the national median of $68.

Alaska: median $151 across 11 hospitalsAK$151Maine: median $53 across 24 hospitalsME$53Vermont: median $123 across 13 hospitalsVT$123New Hampshire: median $108 across 23 hospitalsNH$108Washington: median $54 across 57 hospitalsWA$54Idaho: median $49 across 15 hospitalsID$49Montana: median $86 across 12 hospitalsMT$86North Dakota: median $69 across 23 hospitalsND$69Minnesota: median $71 across 89 hospitalsMN$71Illinois: median $103 across 112 hospitalsIL$103Wisconsin: median $88 across 98 hospitalsWI$88Michigan: median $33 across 78 hospitalsMI$33New York: median $42 across 99 hospitalsNY$42Massachusetts: median $114 across 49 hospitalsMA$114Oregon: median $59 across 41 hospitalsOR$59Nevada: median $54 across 14 hospitalsNV$54Wyoming: median $75 across 11 hospitalsWY$75South Dakota: median $101 across 22 hospitalsSD$101Iowa: median $66 across 66 hospitalsIA$66Indiana: median $84 across 77 hospitalsIN$84Ohio: median $82 across 126 hospitalsOH$82Pennsylvania: median $68 across 109 hospitalsPA$68New Jersey: median $22 across 52 hospitalsNJ$22Connecticut: median $64 across 20 hospitalsCT$64Rhode Island: median $46 across 10 hospitalsRI$46California: median $17 across 75 hospitalsCA$17Utah: median $87 across 36 hospitalsUT$87Colorado: median $68 across 49 hospitalsCO$68Nebraska: median $106 across 44 hospitalsNE$106Missouri: median $83 across 67 hospitalsMO$83Kentucky: median $56 across 45 hospitalsKY$56West Virginia: median $67 across 27 hospitalsWV$67Virginia: median $73 across 70 hospitalsVA$73Maryland: median $82 across 39 hospitalsMD$82Delaware: 6 hospitals filed a usable price — fewer than 10, so no figureDEArizona: median $101 across 33 hospitalsAZ$101New Mexico: median $81 across 10 hospitalsNM$81Kansas: median $86 across 41 hospitalsKS$86Arkansas: median $44 across 27 hospitalsAR$44Tennessee: median $32 across 66 hospitalsTN$32North Carolina: median $46 across 83 hospitalsNC$46South Carolina: median $90 across 43 hospitalsSC$90Oklahoma: median $62 across 50 hospitalsOK$62Louisiana: median $41 across 40 hospitalsLA$41Mississippi: median $37 across 33 hospitalsMS$37Alabama: median $56 across 27 hospitalsAL$56Georgia: median $72 across 80 hospitalsGA$72Hawaii: median $96 across 15 hospitalsHI$96Texas: median $97 across 133 hospitalsTX$97Florida: median $28 across 88 hospitalsFL$28
Cash price by state, most expensive first. National median $68. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Alaska AK11$151+124%$62 – $328
Vermont VT13$123+82%$66 – $290
Massachusetts MA49$114+69%$49 – $200
New Hampshire NH23$108+61%$56 – $240
Nebraska NE44$106+57%$35 – $221
Illinois IL112$103+53%$51 – $184
South Dakota SD22$101+49%$60 – $155
Arizona AZ33$101+49%$31 – $222
Texas TX133$97+43%$20 – $149
Hawaii HI15$96+42%$48 – $168
South Carolina SC43$90+33%$54 – $157
Wisconsin WI98$88+30%$67 – $177
Utah UT36$87+29%$74 – $94
Kansas KS41$86+28%$42 – $167
Montana MT12$86+27%$34 – $190
Indiana IN77$84+24%$30 – $151
Missouri MO67$83+24%$54 – $105
Ohio OH126$82+21%$47 – $95
Maryland MD39$82+21%$60 – $98
New Mexico NM10$81+19%$46 – $126
Wyoming WY11$75+11%$44 – $122
Virginia VA70$73+8%$32 – $180
Georgia GA80$72+7%$37 – $130
Minnesota MN89$71+5%$29 – $119
North Dakota ND23$69+2%$35 – $126
Pennsylvania PA109$680%$23 – $175
Colorado CO49$680%$27 – $296
West Virginia WV27$67−1%$47 – $97
Iowa IA66$66−2%$49 – $110
Connecticut CT20$64−5%$47 – $154
Oklahoma OK50$62−8%$40 – $140
Oregon OR41$59−12%$32 – $89
Alabama AL27$56−17%$24 – $144
Kentucky KY45$56−17%$28 – $133
Washington WA57$54−20%$33 – $100
Nevada NV14$54−20%$24 – $99
Maine ME24$53−21%$30 – $179
Idaho ID15$49−28%$29 – $105
Rhode Island RI10$46−32%$43 – $148
North Carolina NC83$46−32%$37 – $150
Arkansas AR27$44−35%$23 – $88
New York NY99$42−38%$23 – $118
Louisiana LA40$41−39%$19 – $67
Mississippi MS33$37−45%$26 – $89
Michigan MI78$33−52%$21 – $91
Tennessee TN66$32−52%$18 – $106
Florida FL88$28−59%$20 – $91
New Jersey NJ52$22−67%$20 – $51
California CA75$17−74%$9 – $92
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 $68.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care1,845$62$26 – $129
Children’s34$60$24 – $132
Critical access591$83$42 – $144
Ownership
For-profit296$78$26 – $222
Government386$71$33 – $160
Non-profit1,788$66$31 – $125
System affiliation
Part of a system2,081$67$30 – $136
Independent397$70$34 – $129

Cash price vs list price

Median list price (chargemaster)$109
Median cash price$68
Cash as a share of list, median hospital64%

At the typical hospital, asking for the cash price cuts the list price by about 36%. 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

1,720 hospitals filed a usable inpatient cash price for this code. The median is $71 and the average of the middle 60% is $73; most fall between $32 and $131.

Cash price percentiles, inpatient, across 1,720 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$36$71$116$193

The most expensive tenth of hospitals charges at least 8.8× what the cheapest tenth charges ($22 vs $193).

Of the 1,892 hospitals that filed this code inpatient, 1,720 gave a usable cash price; 95 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 77 a list price only.

How complete is this

2,478 of the 3,956 hospitals with a price file in our corpus (63%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 2,681 hospitals that filed this code at all gave us
Usable cash price — counted2,478
Cash price carrying a plausibility flag — shown on the compare tool, excluded here126
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded77
Hospitals that filed this code2,681

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 Other Laboratory family.

Hospitals file this code under descriptions such as HC Clozapine, Serum.

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, “Clozapine blood level (CPT 80159) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-80159-clozapine-blood-level