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Procedure price report · Other Laboratory

Carbamazepine breakdown product blood level

CPT 80161the billing code this page is about

A blood test that measures carbamazepine-10,11-epoxide, a substance the body forms when it processes the seizure medication carbamazepine.

Hospitals typically charge $53 cash for this outpatient procedure — the median across 1,001 hospitals that filed a usable cash price; the average of the middle 60% is $64. Most fall between $24 and $128 (20th–80th percentile).

Hospitals
1,001
States
48
Filings dated
Jan 2024 – 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 1,001 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
$18$31$53$119$186

The most expensive tenth of hospitals charges at least 10× what the cheapest tenth charges ($18 vs $186).

How the prices are spread

$16 – $22: 127 hospitals$16$22 – $30: 71 hospitals$30 – $40: 109 hospitals$30$40 – $55: 156 hospitals$55 – $75: 98 hospitals$55$75 – $102: 104 hospitals$102 – $139: 106 hospitals$102$139 – $189: 83 hospitals$189 – $257: 32 hospitals$189$257 – $350: 17 hospitals$257median $53price bands are equal on a log scale
Hospitals per price band (903 of 1,001 — the bands cover the 5th to 95th percentile)
FromToHospitals
$16$22127
$22$3071
$30$40109
$40$55156
$55$7598
$75$102104
$102$139106
$139$18983
$189$25732
$257$35017

By state

The median cash price in each state, against the national median of $53.

Alaska: 1 hospital filed a usable price — fewer than 10, so no figureAKMaine: no hospital in the corpus filed a usable priceMEVermont: 2 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 4 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $70 across 33 hospitalsWA$70Idaho: 1 hospital filed a usable price — fewer than 10, so no figureIDMontana: 5 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 9 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $54 across 64 hospitalsMN$54Illinois: median $66 across 52 hospitalsIL$66Wisconsin: median $86 across 73 hospitalsWI$86Michigan: median $36 across 24 hospitalsMI$36New York: median $26 across 57 hospitalsNY$26Massachusetts: median $50 across 18 hospitalsMA$50Oregon: median $46 across 20 hospitalsOR$46Nevada: 4 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 6 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $66 across 20 hospitalsIA$66Indiana: median $51 across 21 hospitalsIN$51Ohio: median $54 across 88 hospitalsOH$54Pennsylvania: median $67 across 62 hospitalsPA$67New Jersey: median $21 across 32 hospitalsNJ$21Connecticut: 6 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 1 hospital filed a usable price — fewer than 10, so no figureRICalifornia: median $48 across 49 hospitalsCA$48Utah: median $119 across 23 hospitalsUT$119Colorado: median $63 across 13 hospitalsCO$63Nebraska: 8 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: median $44 across 16 hospitalsMO$44Kentucky: median $113 across 26 hospitalsKY$113West Virginia: 5 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: median $68 across 30 hospitalsVA$68Maryland: 6 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: 3 hospitals filed a usable price — fewer than 10, so no figureDEArizona: 7 hospitals filed a usable price — fewer than 10, so no figureAZNew Mexico: 4 hospitals filed a usable price — fewer than 10, so no figureNMKansas: median $131 across 26 hospitalsKS$131Arkansas: 2 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $24 across 23 hospitalsTN$24North Carolina: median $109 across 16 hospitalsNC$109South Carolina: 5 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: 4 hospitals filed a usable price — fewer than 10, so no figureOKLouisiana: median $40 across 14 hospitalsLA$40Mississippi: median $18 across 11 hospitalsMS$18Alabama: 3 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $22 across 31 hospitalsGA$22Hawaii: no hospital in the corpus filed a usable priceHITexas: median $122 across 58 hospitalsTX$122Florida: median $99 across 12 hospitalsFL$99
Cash price by state, most expensive first. National median $53. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Kansas KS26$131+146%$92 – $226
Texas TX58$122+129%$18 – $433
Utah UT23$119+123%$119 – $140
Kentucky KY26$113+113%$77 – $186
North Carolina NC16$109+104%$8 – $119
Florida FL12$99+86%$45 – $216
Wisconsin WI73$86+61%$40 – $149
Washington WA33$70+32%$34 – $101
Virginia VA30$68+28%$24 – $172
Pennsylvania PA62$67+26%$21 – $225
Iowa IA20$66+25%$53 – $66
Illinois IL52$66+25%$27 – $166
Colorado CO13$63+18%$19 – $129
Minnesota MN64$54+2%$17 – $116
Ohio OH88$54+1%$45 – $96
Indiana IN21$51−4%$38 – $89
Massachusetts MA18$50−6%$33 – $114
California CA49$48−10%$44 – $99
Oregon OR20$46−14%$24 – $48
Missouri MO16$44−17%$40 – $153
Louisiana LA14$40−24%$28 – $55
Michigan MI24$36−33%$26 – $65
New York NY57$26−52%$19 – $50
Tennessee TN23$24−55%$20 – $25
Georgia GA31$22−58%$17 – $75
New Jersey NJ32$21−62%$19 – $21
Mississippi MS11$18−65%$16 – $34
North Dakota ND9not enough hospitals filed a usable price
Nebraska NE8not enough hospitals filed a usable price
Arizona AZ7not enough hospitals filed a usable price
Connecticut CT6not enough hospitals filed a usable price
Maryland MD6not enough hospitals filed a usable price
Wyoming WY6not enough hospitals filed a usable price
Montana MT5not enough hospitals filed a usable price
South Carolina SC5not enough hospitals filed a usable price
West Virginia WV5not enough hospitals filed a usable price
New Hampshire NH4not enough hospitals filed a usable price
New Mexico NM4not enough hospitals filed a usable price
Nevada NV4not enough hospitals filed a usable price
Oklahoma OK4not enough hospitals filed a usable price
Alabama AL3not enough hospitals filed a usable price
Delaware DE3not enough hospitals filed a usable price
South Dakota SD3not enough hospitals filed a usable price
Arkansas AR2not enough hospitals filed a usable price
Vermont VT2not enough hospitals filed a usable price
Alaska AK1not enough hospitals filed a usable price
Idaho ID1not enough hospitals filed a usable price
Rhode Island RI1not 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 $53.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care784$50$21 – $122
Children’s21$163$71 – $225
Critical access191$78$36 – $138
Ownership
For-profit66$61$17 – $352
Government116$52$21 – $131
Non-profit814$53$24 – $126
System affiliation
Part of a system893$53$24 – $128
Independent108$73$32 – $150

Cash price vs list price

Median list price (chargemaster)$92
Median cash price$53
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

793 hospitals filed a usable inpatient cash price for this code. The median is $54 and the average of the middle 60% is $66; most fall between $28 and $128.

Cash price percentiles, inpatient, across 793 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
$19$35$54$118$187

The most expensive tenth of hospitals charges at least 10× what the cheapest tenth charges ($19 vs $187).

Of the 846 hospitals that filed this code inpatient, 793 gave a usable cash price; 29 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 24 a list price only.

How complete is this

1,001 of the 3,956 hospitals with a price file in our corpus (25%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 1,070 hospitals that filed this code at all gave us
Usable cash price — counted1,001
Cash price carrying a plausibility flag — shown on the compare tool, excluded here43
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 — excluded25
Hospitals that filed this code1,070

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 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 Carbamazapine 10,11 Epoxide.

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, “Carbamazepine breakdown product blood level (CPT 80161) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-80161-carbamazepine-breakdown-product-blood-level