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Procedure price report · Nonoperative urinary system measurements

Voiding pressure measurement inside the abdomen, add-on

CPT 51797the billing code this page is about

Measurement of pressure within the abdomen during urination; billed in addition to a bladder pressure and filling study done at the same visit.

Hospitals typically charge $382 cash for this outpatient procedure — the median across 993 hospitals that filed a usable cash price; the average of the middle 60% is $365. Most fall between $135 and $630 (20th–80th percentile).

Hospitals
993
States
50
Filings dated
Jun 2024 – Sep 2026
Computed
September 25, 2026
Prices checked
through September 24, 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 993 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
$72$166$382$548$875

The most expensive tenth of hospitals charges at least 12× what the cheapest tenth charges ($72 vs $875).

How the prices are spread

$44 – $62: 27 hospitals$44$62 – $87: 54 hospitals$87 – $123: 57 hospitals$87$123 – $173: 64 hospitals$173 – $244: 96 hospitals$173$244 – $343: 107 hospitals$343 – $482: 198 hospitals$343$482 – $679: 162 hospitals$679 – $956: 93 hospitals$679$956 – $1,345: 37 hospitals$956median $382price bands are equal on a log scale
Hospitals per price band (895 of 993 — the bands cover the 5th to 95th percentile)
FromToHospitals
$44$6227
$62$8754
$87$12357
$123$17364
$173$24496
$244$343107
$343$482198
$482$679162
$679$95693
$956$1,34537

By state

The median cash price in each state, against the national median of $382.

Alaska: 4 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 9 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 9 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 6 hospitals filed a usable price — fewer than 10, so no figureNHWashington: median $463 across 27 hospitalsWA$463Idaho: 8 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 8 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 6 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $393 across 29 hospitalsMN$393Illinois: median $381 across 35 hospitalsIL$381Wisconsin: median $455 across 56 hospitalsWI$455Michigan: median $240 across 51 hospitalsMI$240New York: median $416 across 48 hospitalsNY$416Massachusetts: median $346 across 18 hospitalsMA$346Oregon: median $288 across 21 hospitalsOR$288Nevada: 3 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 4 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: median $373 across 10 hospitalsSD$373Iowa: median $128 across 28 hospitalsIA$128Indiana: median $249 across 27 hospitalsIN$249Ohio: median $701 across 48 hospitalsOH$701Pennsylvania: median $247 across 41 hospitalsPA$247New Jersey: median $3,786 across 24 hospitalsNJ$3,786Connecticut: 7 hospitals filed a usable price — fewer than 10, so no figureCTRhode Island: 2 hospitals filed a usable price — fewer than 10, so no figureRICalifornia: median $510 across 77 hospitalsCA$510Utah: 1 hospital filed a usable price — fewer than 10, so no figureUTColorado: median $197 across 10 hospitalsCO$197Nebraska: median $347 across 12 hospitalsNE$347Missouri: median $320 across 29 hospitalsMO$320Kentucky: median $292 across 18 hospitalsKY$292West Virginia: median $152 across 21 hospitalsWV$152Virginia: median $274 across 22 hospitalsVA$274Maryland: 6 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: 3 hospitals filed a usable price — fewer than 10, so no figureDEArizona: 5 hospitals filed a usable price — fewer than 10, so no figureAZNew Mexico: 2 hospitals filed a usable price — fewer than 10, so no figureNMKansas: 8 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 6 hospitals filed a usable price — fewer than 10, so no figureARTennessee: median $32 across 16 hospitalsTN$32North Carolina: median $208 across 28 hospitalsNC$208South Carolina: median $551 across 13 hospitalsSC$551Oklahoma: median $652 across 15 hospitalsOK$652Louisiana: median $149 across 20 hospitalsLA$149Mississippi: median $210 across 16 hospitalsMS$210Alabama: 6 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: median $403 across 16 hospitalsGA$403Hawaii: 9 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $426 across 68 hospitalsTX$426Florida: median $542 across 37 hospitalsFL$542
Cash price by state, most expensive first. National median $382. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
New Jersey NJ24$3,786+892%$486 – $5,419
Ohio OH48$701+84%$266 – $743
Oklahoma OK15$652+71%$510 – $785
South Carolina SC13$551+45%$355 – $552
Florida FL37$542+42%$261 – $820
California CA77$510+34%$321 – $534
Washington WA27$463+21%$241 – $684
Wisconsin WI56$455+19%$404 – $694
Texas TX68$426+12%$285 – $587
New York NY48$416+9%$148 – $4,595
Georgia GA16$403+6%$254 – $403
Minnesota MN29$393+3%$136 – $774
Illinois IL35$3810%$77 – $714
South Dakota SD10$373−2%$373 – $420
Nebraska NE12$347−9%$242 – $422
Massachusetts MA18$346−9%$123 – $616
Missouri MO29$320−16%$195 – $443
Kentucky KY18$292−24%$79 – $416
Oregon OR21$288−24%$71 – $453
Virginia VA22$274−28%$227 – $380
Indiana IN27$249−35%$179 – $471
Pennsylvania PA41$247−35%$30 – $487
Michigan MI51$240−37%$33 – $742
Mississippi MS16$210−45%$195 – $356
North Carolina NC28$208−45%$103 – $331
Colorado CO10$197−48%$105 – $312
West Virginia WV21$152−60%$45 – $274
Louisiana LA20$149−61%$82 – $284
Iowa IA28$128−66%$102 – $356
Tennessee TN16$32−92%$32 – $48
Hawaii HI9not enough hospitals filed a usable price
Maine ME9not enough hospitals filed a usable price
Vermont VT9not enough hospitals filed a usable price
Idaho ID8not enough hospitals filed a usable price
Kansas KS8not enough hospitals filed a usable price
Montana MT8not enough hospitals filed a usable price
Connecticut CT7not enough hospitals filed a usable price
Alabama AL6not enough hospitals filed a usable price
Arkansas AR6not enough hospitals filed a usable price
Maryland MD6not enough hospitals filed a usable price
North Dakota ND6not enough hospitals filed a usable price
New Hampshire NH6not enough hospitals filed a usable price
Arizona AZ5not enough hospitals filed a usable price
Alaska AK4not enough hospitals filed a usable price
Wyoming WY4not enough hospitals filed a usable price
Delaware DE3not enough hospitals filed a usable price
Nevada NV3not enough hospitals filed a usable price
New Mexico NM2not enough hospitals filed a usable price
Rhode Island RI2not enough hospitals filed a usable price
Utah UT1not 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 $382.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care763$386$134 – $627
Children’s50$552$210 – $878
Critical access178$310$105 – $502
Ownership
For-profit53$426$102 – $792
Government145$270$117 – $476
Non-profit793$396$149 – $671
System affiliation
Part of a system806$400$148 – $660
Independent187$277$110 – $525

Cash price vs list price

Median list price (chargemaster)$540
Median cash price$382
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

666 hospitals filed a usable inpatient cash price for this code. The median is $386 and the average of the middle 60% is $373; most fall between $142 and $587.

Cash price percentiles, inpatient, across 666 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
$80$192$386$540$766

The most expensive tenth of hospitals charges at least 9.6× what the cheapest tenth charges ($80 vs $766).

Of the 731 hospitals that filed this code inpatient, 666 gave a usable cash price; 31 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 34 a list price only.

How complete is this

993 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 1,121 hospitals that filed this code at all gave us
Usable cash price — counted993
Cash price carrying a plausibility flag — shown on the compare tool, excluded here62
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 — excluded65
Hospitals that filed this code1,121

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 24, 2026; the figures were computed September 25, 2026 from filings loaded through September 24, 2026. The percentiles and averages use only the “counted” row.

Related procedures

Part of the Nonoperative urinary system measurements family.

Hospitals file this code under descriptions such as Void Pressure Studies Intraabdominal|TECHNICAL COMPONENT.

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, “Voiding pressure measurement inside the abdomen, add-on (CPT 51797) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-51797-voiding-pressure-measurement-inside-the-abdomen-add-on