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Procedure price report · Arthroplasty knee

Knee ligament reconstruction inside and outside the joint

CPT 27429the billing code this page is about

Open rebuilding of knee ligaments with work both within the joint space and on supporting tissues outside it during the same operation.

Hospitals typically charge $6,010 cash for this outpatient procedure — the median across 333 hospitals that filed a usable cash price; the average of the middle 60% is $7,607. Most fall between $2,338 and $17,654 (20th–80th percentile).

Hospitals
333
States
43
Filings dated
Mar 2023 – 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 333 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
$1,582$2,565$6,010$15,226$20,642

The most expensive tenth of hospitals charges at least 13× what the cheapest tenth charges ($1,582 vs $20,642).

How the prices are spread

$967 – $1,353: 11 hospitals$967$1,353 – $1,892: 22 hospitals$1,892 – $2,647: 47 hospitals$1,892$2,647 – $3,702: 37 hospitals$3,702 – $5,177: 26 hospitals$3,702$5,177 – $7,241: 35 hospitals$7,241 – $10,128: 10 hospitals$7,241$10,128 – $14,165: 25 hospitals$14,165 – $19,811: 55 hospitals$14,165$19,811 – $27,708: 33 hospitals$19,811median $6,010price bands are equal on a log scale
Hospitals per price band (301 of 333 — the bands cover the 5th to 95th percentile)
FromToHospitals
$967$1,35311
$1,353$1,89222
$1,892$2,64747
$2,647$3,70237
$3,702$5,17726
$5,177$7,24135
$7,241$10,12810
$10,128$14,16525
$14,165$19,81155
$19,811$27,70833

Against Medicare

Medicare pays (OPPS 2026, national rate)$13,117
Median cash price$6,010
Cash as a multiple of Medicare0.46×

The Medicare figure is the national unadjusted OPPS rate for this code — what Medicare itself pays a hospital before local wage adjustment. It is a benchmark, not a price anyone is charged.

By state

The median cash price in each state, against the national median of $6,010.

Alaska: 1 hospital filed a usable price — fewer than 10, so no figureAKMaine: no hospital in the corpus filed a usable priceMEVermont: 5 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: 4 hospitals filed a usable price — fewer than 10, so no figureNHWashington: 7 hospitals filed a usable price — fewer than 10, so no figureWAIdaho: 8 hospitals filed a usable price — fewer than 10, so no figureIDMontana: 3 hospitals filed a usable price — fewer than 10, so no figureMTNorth Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: 4 hospitals filed a usable price — fewer than 10, so no figureMNIllinois: median $2,297 across 14 hospitalsIL$2,297Wisconsin: median $6,902 across 23 hospitalsWI$6,902Michigan: median $2,420 across 16 hospitalsMI$2,420New York: median $15,226 across 26 hospitalsNY$15,226Massachusetts: 1 hospital filed a usable price — fewer than 10, so no figureMAOregon: 7 hospitals filed a usable price — fewer than 10, so no figureORNevada: 4 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 4 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: no hospital in the corpus filed a usable priceSDIowa: median $3,083 across 15 hospitalsIA$3,083Indiana: 1 hospital filed a usable price — fewer than 10, so no figureINOhio: median $4,560 across 11 hospitalsOH$4,560Pennsylvania: median $2,336 across 19 hospitalsPA$2,336New Jersey: median $14,242 across 30 hospitalsNJ$14,242Connecticut: no hospital in the corpus filed a usable priceCTRhode Island: no hospital in the corpus filed a usable priceRICalifornia: median $20,642 across 25 hospitalsCA$20,642Utah: 1 hospital filed a usable price — fewer than 10, so no figureUTColorado: 6 hospitals filed a usable price — fewer than 10, so no figureCONebraska: 6 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: 4 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: 1 hospital filed a usable price — fewer than 10, so no figureKYWest Virginia: 2 hospitals filed a usable price — fewer than 10, so no figureWVVirginia: 1 hospital filed a usable price — fewer than 10, so no figureVAMaryland: no hospital in the corpus filed a usable priceMDDelaware: no hospital in the corpus filed a usable priceDEArizona: 1 hospital filed a usable price — fewer than 10, so no figureAZNew Mexico: 1 hospital filed a usable price — fewer than 10, so no figureNMKansas: 4 hospitals filed a usable price — fewer than 10, so no figureKSArkansas: 4 hospitals filed a usable price — fewer than 10, so no figureARTennessee: 6 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: 4 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: median $2,637 across 13 hospitalsOK$2,637Louisiana: 4 hospitals filed a usable price — fewer than 10, so no figureLAMississippi: 1 hospital filed a usable price — fewer than 10, so no figureMSAlabama: 5 hospitals filed a usable price — fewer than 10, so no figureALGeorgia: 8 hospitals filed a usable price — fewer than 10, so no figureGAHawaii: no hospital in the corpus filed a usable priceHITexas: median $10,629 across 26 hospitalsTX$10,629Florida: 3 hospitals filed a usable price — fewer than 10, so no figureFL
Cash price by state, most expensive first. National median $6,010. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
California CA25$20,642+243%$3,518 – $20,642
New York NY26$15,226+153%$2,935 – $15,239
New Jersey NJ30$14,242+137%$5,110 – $17,169
Texas TX26$10,629+77%$10,629 – $12,714
Wisconsin WI23$6,902+15%$6,207 – $6,902
Ohio OH11$4,560−24%$2,600 – $15,473
Iowa IA15$3,083−49%$3,083 – $3,083
Oklahoma OK13$2,637−56%$2,637 – $26,233
Michigan MI16$2,420−60%$1,841 – $17,654
Pennsylvania PA19$2,336−61%$785 – $21,753
Illinois IL14$2,297−62%$967 – $5,159
Georgia GA8not enough hospitals filed a usable price
Idaho ID8not enough hospitals filed a usable price
Oregon OR7not enough hospitals filed a usable price
Washington WA7not enough hospitals filed a usable price
Colorado CO6not enough hospitals filed a usable price
Nebraska NE6not enough hospitals filed a usable price
Tennessee TN6not enough hospitals filed a usable price
Alabama AL5not enough hospitals filed a usable price
Vermont VT5not enough hospitals filed a usable price
Arkansas AR4not enough hospitals filed a usable price
Kansas KS4not enough hospitals filed a usable price
Louisiana LA4not enough hospitals filed a usable price
Minnesota MN4not enough hospitals filed a usable price
Missouri MO4not enough hospitals filed a usable price
New Hampshire NH4not enough hospitals filed a usable price
Nevada NV4not enough hospitals filed a usable price
South Carolina SC4not enough hospitals filed a usable price
Wyoming WY4not enough hospitals filed a usable price
Florida FL3not enough hospitals filed a usable price
Montana MT3not enough hospitals filed a usable price
North Dakota ND3not enough hospitals filed a usable price
West Virginia WV2not enough hospitals filed a usable price
Alaska AK1not enough hospitals filed a usable price
Arizona AZ1not enough hospitals filed a usable price
Indiana IN1not enough hospitals filed a usable price
Kentucky KY1not enough hospitals filed a usable price
Massachusetts MA1not enough hospitals filed a usable price
Mississippi MS1not enough hospitals filed a usable price
North Carolina NC1not enough hospitals filed a usable price
New Mexico NM1not enough hospitals filed a usable price
Utah UT1not enough hospitals filed a usable price
Virginia VA1not 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 $6,010.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care264$6,902$2,339 – $18,467
Children’s10fewer than 20 hospitals
Critical access59$4,813$1,772 – $10,110
Ownership
For-profit38$10,629$1,841 – $27,390
Government56$3,538$2,138 – $15,226
Non-profit239$6,207$2,339 – $17,169
System affiliation
Part of a system256$6,902$2,504 – $18,431
Independent77$3,506$1,910 – $11,307

Cash price vs list price

Median list price (chargemaster)$5,194
Median cash price$6,010
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

181 hospitals filed a usable inpatient cash price for this code. The median is $3,781 and the average of the middle 60% is $5,768; most fall between $2,272 and $15,473.

Cash price percentiles, inpatient, across 181 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
$1,626$2,339$3,781$10,629$20,642

The most expensive tenth of hospitals charges at least 13× what the cheapest tenth charges ($1,626 vs $20,642).

Of the 203 hospitals that filed this code inpatient, 181 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 5 a list price only.

How complete is this

333 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 376 hospitals that filed this code at all gave us
Usable cash price — counted333
Cash price carrying a plausibility flag — shown on the compare tool, excluded here36
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 — excluded6
Hospitals that filed this code376

Sections not shown for this setting

  • 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 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 Arthroplasty knee family.

Hospitals file this code under descriptions such as Ligmous Rcnstj Agmntj Kne Intra-Articular Xtr.

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, “Knee ligament reconstruction inside and outside the joint (CPT 27429) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-27429-knee-ligament-reconstruction-inside-and-outside-the-joint