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Procedure price report · Pathology

Glycine receptor antibody test, blood or spinal fluid

CPT 0431Uthe billing code this page is about

A laboratory test that reports whether antibodies against the glycine receptor alpha1 protein are present in a serum or cerebrospinal fluid sample.

Hospitals typically charge $198 cash for this outpatient procedure — the median across 246 hospitals that filed a usable cash price; the average of the middle 60% is $331. Most fall between $78 and $750 (20th–80th percentile).

Hospitals
246
States
30
Filings dated
Oct 2025 – Sep 2026
Computed
September 25, 2026
Prices checked
through September 23, 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 246 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
$64$87$198$731$1,040

The most expensive tenth of hospitals charges at least 16× what the cheapest tenth charges ($64 vs $1,040).

How the prices are spread

$42 – $60: 12 hospitals$42$60 – $85: 34 hospitals$85 – $120: 23 hospitals$85$120 – $171: 26 hospitals$171 – $242: 28 hospitals$171$242 – $343: 13 hospitals$343 – $487: 26 hospitals$343$487 – $691: 9 hospitals$691 – $981: 38 hospitals$691$981 – $1,392: 13 hospitals$981median $198price bands are equal on a log scale
Hospitals per price band (222 of 246 — the bands cover the 5th to 95th percentile)
FromToHospitals
$42$6012
$60$8534
$85$12023
$120$17126
$171$24228
$242$34313
$343$48726
$487$6919
$691$98138
$981$1,39213

By state

The median cash price in each state, against the national median of $198.

Alaska: no hospital in the corpus filed a usable priceAKMaine: no hospital in the corpus filed a usable priceMEVermont: no hospital in the corpus filed a usable priceVTNew Hampshire: 1 hospital filed a usable price — fewer than 10, so no figureNHWashington: median $82 across 12 hospitalsWA$82Idaho: 1 hospital filed a usable price — fewer than 10, so no figureIDMontana: 1 hospital filed a usable price — fewer than 10, so no figureMTNorth Dakota: no hospital in the corpus filed a usable priceNDMinnesota: median $120 across 19 hospitalsMN$120Illinois: 7 hospitals filed a usable price — fewer than 10, so no figureILWisconsin: median $87 across 23 hospitalsWI$87Michigan: 3 hospitals filed a usable price — fewer than 10, so no figureMINew York: 4 hospitals filed a usable price — fewer than 10, so no figureNYMassachusetts: 6 hospitals filed a usable price — fewer than 10, so no figureMAOregon: no hospital in the corpus filed a usable priceORNevada: no hospital in the corpus filed a usable priceNVWyoming: no hospital in the corpus filed a usable priceWYSouth Dakota: no hospital in the corpus filed a usable priceSDIowa: median $131 across 12 hospitalsIA$131Indiana: median $325 across 12 hospitalsIN$325Ohio: 5 hospitals filed a usable price — fewer than 10, so no figureOHPennsylvania: median $502 across 16 hospitalsPA$502New Jersey: 4 hospitals filed a usable price — fewer than 10, so no figureNJConnecticut: 4 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 $77 across 22 hospitalsCA$77Utah: no hospital in the corpus filed a usable priceUTColorado: median $202 across 14 hospitalsCO$202Nebraska: 1 hospital filed a usable price — fewer than 10, so no figureNEMissouri: 2 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: no hospital in the corpus filed a usable priceKYWest Virginia: no hospital in the corpus filed a usable priceWVVirginia: 4 hospitals filed a usable price — fewer than 10, so no figureVAMaryland: 8 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: no hospital in the corpus filed a usable priceNMKansas: no hospital in the corpus filed a usable priceKSArkansas: 1 hospital filed a usable price — fewer than 10, so no figureARTennessee: 7 hospitals filed a usable price — fewer than 10, so no figureTNNorth Carolina: no hospital in the corpus filed a usable priceNCSouth Carolina: median $189 across 16 hospitalsSC$189Oklahoma: 2 hospitals filed a usable price — fewer than 10, so no figureOKLouisiana: no hospital in the corpus filed a usable priceLAMississippi: no hospital in the corpus filed a usable priceMSAlabama: no hospital in the corpus filed a usable priceALGeorgia: no hospital in the corpus filed a usable priceGAHawaii: no hospital in the corpus filed a usable priceHITexas: median $750 across 33 hospitalsTX$750Florida: 2 hospitals filed a usable price — fewer than 10, so no figureFL
Cash price by state, most expensive first. National median $198. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Texas TX33$750+278%$750 – $750
Pennsylvania PA16$502+153%$42 – $2,129
Indiana IN12$325+64%$286 – $440
Colorado CO14$202+2%$167 – $421
South Carolina SC16$189−5%$189 – $1,213
Iowa IA12$131−34%$131 – $131
Minnesota MN19$120−40%$120 – $397
Wisconsin WI23$87−56%$22 – $124
Washington WA12$82−59%$82 – $108
California CA22$77−61%$77 – $77
Maryland MD8not enough hospitals filed a usable price
Illinois IL7not enough hospitals filed a usable price
Tennessee TN7not enough hospitals filed a usable price
Massachusetts MA6not enough hospitals filed a usable price
Ohio OH5not enough hospitals filed a usable price
Connecticut CT4not enough hospitals filed a usable price
New Jersey NJ4not enough hospitals filed a usable price
New York NY4not enough hospitals filed a usable price
Virginia VA4not enough hospitals filed a usable price
Arizona AZ3not enough hospitals filed a usable price
Michigan MI3not enough hospitals filed a usable price
Florida FL2not enough hospitals filed a usable price
Missouri MO2not enough hospitals filed a usable price
Oklahoma OK2not enough hospitals filed a usable price
Arkansas AR1not enough hospitals filed a usable price
Idaho ID1not enough hospitals filed a usable price
Montana MT1not enough hospitals filed a usable price
Nebraska NE1not enough hospitals filed a usable price
New Hampshire NH1not 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 $198.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care209$198$77 – $750
Children’s4fewer than 20 hospitals
Critical access32$131$120 – $513
Ownership
For-profit13fewer than 20 hospitals
Government18fewer than 20 hospitals
Non-profit214$189$77 – $750
System affiliation
Part of a system236$194$77 – $750
Independent10fewer than 20 hospitals

Cash price vs list price

Median list price (chargemaster)$476
Median cash price$198
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

202 hospitals filed a usable inpatient cash price for this code. The median is $189 and the average of the middle 60% is $303; most fall between $77 and $750.

Cash price percentiles, inpatient, across 202 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
$44$102$189$750$1,213

The most expensive tenth of hospitals charges at least 28× what the cheapest tenth charges ($44 vs $1,213).

Of the 208 hospitals that filed this code inpatient, 202 gave a usable cash price; 0 carried a plausibility flag, 2 filed a number their own filing marks as not a price, 0 gave an estimate, and 4 a list price only.

How complete is this

246 of the 3,956 hospitals with a price file in our corpus (6%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 254 hospitals that filed this code at all gave us
Usable cash price — counted246
Cash price carrying a plausibility flag — shown on the compare tool, excluded here1
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded3
An estimate rather than a filed cash price — excluded0
A list price only, no cash figure — excluded4
Hospitals that filed this code254

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 5, 2026 and September 23, 2026; the figures were computed September 25, 2026 from filings loaded through September 23, 2026. The percentiles and averages use only the “counted” row.

Related procedures

Part of the Pathology family.

Hospitals file this code under descriptions such as GLY RCPTR ALPHA1 IGG SRM/CSF.

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, “Glycine receptor antibody test, blood or spinal fluid (CPT 0431U) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-0431u-glycine-receptor-antibody-test-blood-or-spinal-fluid