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Procedure price report · Peripheral vascular bypass

Groin to behind-the-knee artery bypass with a vein graft

CPT 35556the billing code this page is about

Open leg surgery that reroutes blood around a blocked artery, connecting the femoral artery in the groin to the popliteal artery behind the knee with the patient's own vein.

Hospitals typically charge $3,312 cash for this outpatient procedure — the median across 327 hospitals that filed a usable cash price; the average of the middle 60% is $3,300. Most fall between $1,638 and $5,741 (20th–80th percentile).

Hospitals
327
States
46
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 327 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
$953$2,024$3,312$4,790$9,153

The most expensive tenth of hospitals charges at least 9.6× what the cheapest tenth charges ($953 vs $9,153).

How the prices are spread

$465 – $662: 11 hospitals$465$662 – $944: 10 hospitals$944 – $1,346: 19 hospitals$944$1,346 – $1,918: 22 hospitals$1,918 – $2,733: 71 hospitals$1,918$2,733 – $3,896: 51 hospitals$3,896 – $5,552: 64 hospitals$3,896$5,552 – $7,913: 24 hospitals$7,913 – $11,278: 25 hospitals$7,913$11,278 – $16,074: 3 hospitals$11,278median $3,312price bands are equal on a log scale
Hospitals per price band (300 of 327 — the bands cover the 5th to 95th percentile)
FromToHospitals
$465$66211
$662$94410
$944$1,34619
$1,346$1,91822
$1,918$2,73371
$2,733$3,89651
$3,896$5,55264
$5,552$7,91324
$7,913$11,27825
$11,278$16,0743

By state

The median cash price in each state, against the national median of $3,312.

Alaska: 2 hospitals 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: 4 hospitals filed a usable price — fewer than 10, so no figureWAIdaho: 2 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 2 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: 7 hospitals filed a usable price — fewer than 10, so no figureMNIllinois: median $2,631 across 19 hospitalsIL$2,631Wisconsin: median $7,477 across 26 hospitalsWI$7,477Michigan: median $2,905 across 28 hospitalsMI$2,905New York: median $2,588 across 20 hospitalsNY$2,588Massachusetts: 1 hospital filed a usable price — fewer than 10, so no figureMAOregon: median $3,195 across 14 hospitalsOR$3,195Nevada: 2 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 3 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 7 hospitals filed a usable price — fewer than 10, so no figureSDIowa: median $3,418 across 16 hospitalsIA$3,418Indiana: 7 hospitals filed a usable price — fewer than 10, so no figureINOhio: median $1,074 across 23 hospitalsOH$1,074Pennsylvania: median $303 across 16 hospitalsPA$303New Jersey: median $5,110 across 14 hospitalsNJ$5,110Connecticut: 1 hospital filed a usable price — fewer than 10, so no figureCTRhode Island: no hospital in the corpus filed a usable priceRICalifornia: median $3,162 across 11 hospitalsCA$3,162Utah: no hospital in the corpus filed a usable priceUTColorado: 3 hospitals filed a usable price — fewer than 10, so no figureCONebraska: 4 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: 9 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: 4 hospitals filed a usable price — fewer than 10, so no figureKYWest Virginia: 9 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: 4 hospitals filed a usable price — fewer than 10, so no figureVAMaryland: 2 hospitals filed a usable price — fewer than 10, so no figureMDDelaware: 1 hospital filed a usable price — fewer than 10, so no figureDEArizona: 3 hospitals filed a usable price — fewer than 10, so no figureAZNew Mexico: 2 hospitals filed a usable price — fewer than 10, so no figureNMKansas: 5 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 2 hospitals filed a usable price — fewer than 10, so no figureARTennessee: 3 hospitals filed a usable price — fewer than 10, so no figureTNNorth Carolina: 1 hospital filed a usable price — fewer than 10, so no figureNCSouth Carolina: no hospital in the corpus filed a usable priceSCOklahoma: median $2,255 across 14 hospitalsOK$2,255Louisiana: 1 hospital filed a usable price — fewer than 10, so no figureLAMississippi: 2 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: 2 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: 9 hospitals filed a usable price — fewer than 10, so no figureGAHawaii: 4 hospitals filed a usable price — fewer than 10, so no figureHITexas: 4 hospitals filed a usable price — fewer than 10, so no figureTXFlorida: 5 hospitals filed a usable price — fewer than 10, so no figureFL
Cash price by state, most expensive first. National median $3,312. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Wisconsin WI26$7,477+126%$4,187 – $9,853
New Jersey NJ14$5,110+54%$4,350 – $6,311
Iowa IA16$3,418+3%$3,418 – $3,418
Oregon OR14$3,195−4%$2,482 – $24,997
California CA11$3,162−5%$656 – $4,106
Michigan MI28$2,905−12%$1,943 – $4,425
Illinois IL19$2,631−21%$1,082 – $7,553
New York NY20$2,588−22%$1,201 – $3,508
Oklahoma OK14$2,255−32%$2,255 – $10,871
Ohio OH23$1,074−68%$1,074 – $3,301
Pennsylvania PA16$303−91%$258 – $4,085
Georgia GA9not enough hospitals filed a usable price
Missouri MO9not enough hospitals filed a usable price
West Virginia WV9not enough hospitals filed a usable price
Indiana IN7not enough hospitals filed a usable price
Minnesota MN7not enough hospitals filed a usable price
South Dakota SD7not enough hospitals filed a usable price
Florida FL5not enough hospitals filed a usable price
Kansas KS5not enough hospitals filed a usable price
Hawaii HI4not enough hospitals filed a usable price
Kentucky KY4not enough hospitals filed a usable price
Nebraska NE4not enough hospitals filed a usable price
New Hampshire NH4not enough hospitals filed a usable price
Texas TX4not enough hospitals filed a usable price
Virginia VA4not enough hospitals filed a usable price
Washington WA4not enough hospitals filed a usable price
Arizona AZ3not enough hospitals filed a usable price
Colorado CO3not enough hospitals filed a usable price
North Dakota ND3not enough hospitals filed a usable price
Tennessee TN3not enough hospitals filed a usable price
Wyoming WY3not enough hospitals filed a usable price
Alaska AK2not enough hospitals filed a usable price
Alabama AL2not enough hospitals filed a usable price
Arkansas AR2not enough hospitals filed a usable price
Idaho ID2not enough hospitals filed a usable price
Maryland MD2not enough hospitals filed a usable price
Mississippi MS2not enough hospitals filed a usable price
Montana MT2not enough hospitals filed a usable price
New Mexico NM2not enough hospitals filed a usable price
Nevada NV2not enough hospitals filed a usable price
Vermont VT2not enough hospitals filed a usable price
Connecticut CT1not enough hospitals filed a usable price
Delaware DE1not enough hospitals filed a usable price
Louisiana LA1not enough hospitals filed a usable price
Massachusetts MA1not enough hospitals filed a usable price
North Carolina NC1not 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 $3,312.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care259$3,314$1,638 – $5,660
Children’s5fewer than 20 hospitals
Critical access61$3,279$1,528 – $7,666
Ownership
For-profit20$2,703$2,024 – $9,726
Government36$2,965$1,607 – $4,603
Non-profit269$3,337$1,600 – $6,311
System affiliation
Part of a system264$3,418$1,607 – $6,839
Independent63$2,739$1,638 – $4,734

Cash price vs list price

Median list price (chargemaster)$4,272
Median cash price$3,312
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

241 hospitals filed a usable inpatient cash price for this code. The median is $2,769 and the average of the middle 60% is $2,936; most fall between $1,421 and $4,739.

Cash price percentiles, inpatient, across 241 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
$918$1,875$2,769$4,187$9,153

The most expensive tenth of hospitals charges at least 10.0× what the cheapest tenth charges ($918 vs $9,153).

Of the 276 hospitals that filed this code inpatient, 241 gave a usable cash price; 17 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 18 a list price only.

How complete is this

327 of the 3,956 hospitals with a price file in our corpus (8%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 395 hospitals that filed this code at all gave us
Usable cash price — counted327
Cash price carrying a plausibility flag — shown on the compare tool, excluded here40
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 — excluded27
Hospitals that filed this code395

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 Peripheral vascular bypass family.

Hospitals file this code under descriptions such as Bypass W/Vein Femoral-Popliteal.

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, “Groin to behind-the-knee artery bypass with a vein graft (CPT 35556) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-35556-groin-to-behind-the-knee-artery-bypass-with-a-vein-graft