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Procedure price report · Arthroplasty knee

Knee ligament reconstruction outside the joint

CPT 27427the billing code this page is about

Rebuilding or reinforcing knee ligaments using tissue placed outside the joint itself rather than within the joint space.

Hospitals typically charge $3,681 cash for this outpatient procedure — the median across 736 hospitals that filed a usable cash price; the average of the middle 60% is $4,496. Most fall between $1,450 and $11,417 (20th–80th percentile).

Hospitals
736
States
49
Filings dated
Mar 2023 – 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 736 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
$1,047$1,632$3,681$8,902$19,893

The most expensive tenth of hospitals charges at least 19× what the cheapest tenth charges ($1,047 vs $19,893).

How the prices are spread

$729 – $1,060: 39 hospitals$729$1,060 – $1,541: 97 hospitals$1,541 – $2,242: 87 hospitals$1,541$2,242 – $3,262: 88 hospitals$3,262 – $4,744: 70 hospitals$3,262$4,744 – $6,901: 68 hospitals$6,901 – $10,039: 95 hospitals$6,901$10,039 – $14,603: 41 hospitals$14,603 – $21,242: 46 hospitals$14,603$21,242 – $30,899: 33 hospitals$21,242median $3,681price bands are equal on a log scale
Hospitals per price band (664 of 736 — the bands cover the 5th to 95th percentile)
FromToHospitals
$729$1,06039
$1,060$1,54197
$1,541$2,24287
$2,242$3,26288
$3,262$4,74470
$4,744$6,90168
$6,901$10,03995
$10,039$14,60341
$14,603$21,24246
$21,242$30,89933

Against Medicare

Medicare pays (OPPS 2026, national rate)$7,413
Median cash price$3,681
Cash as a multiple of Medicare0.50×

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 $3,681.

Alaska: 5 hospitals filed a usable price — fewer than 10, so no figureAKMaine: 2 hospitals filed a usable price — fewer than 10, so no figureMEVermont: 9 hospitals filed a usable price — fewer than 10, so no figureVTNew Hampshire: median $795 across 10 hospitalsNH$795Washington: median $1,729 across 18 hospitalsWA$1,729Idaho: median $7,514 across 14 hospitalsID$7,514Montana: median $1,843 across 10 hospitalsMT$1,843North Dakota: 3 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: median $4,367 across 27 hospitalsMN$4,367Illinois: median $1,752 across 23 hospitalsIL$1,752Wisconsin: median $3,739 across 38 hospitalsWI$3,739Michigan: median $3,129 across 36 hospitalsMI$3,129New York: median $4,265 across 44 hospitalsNY$4,265Massachusetts: 5 hospitals filed a usable price — fewer than 10, so no figureMAOregon: median $1,947 across 22 hospitalsOR$1,947Nevada: 7 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 $1,752 across 29 hospitalsIA$1,752Indiana: median $1,864 across 13 hospitalsIN$1,864Ohio: median $6,034 across 28 hospitalsOH$6,034Pennsylvania: median $5,050 across 25 hospitalsPA$5,050New Jersey: median $6,839 across 33 hospitalsNJ$6,839Connecticut: 1 hospital filed a usable price — fewer than 10, so no figureCTRhode Island: no hospital in the corpus filed a usable priceRICalifornia: median $3,255 across 51 hospitalsCA$3,255Utah: 2 hospitals filed a usable price — fewer than 10, so no figureUTColorado: median $1,517 across 12 hospitalsCO$1,517Nebraska: median $2,256 across 19 hospitalsNE$2,256Missouri: median $4,719 across 21 hospitalsMO$4,719Kentucky: 9 hospitals filed a usable price — fewer than 10, so no figureKYWest Virginia: median $1,920 across 16 hospitalsWV$1,920Virginia: 9 hospitals filed a usable price — fewer than 10, so no figureVAMaryland: 1 hospital filed a usable price — fewer than 10, so no figureMDDelaware: 1 hospital filed a usable price — fewer than 10, so no figureDEArizona: median $3,619 across 10 hospitalsAZ$3,619New Mexico: 4 hospitals filed a usable price — fewer than 10, so no figureNMKansas: median $2,117 across 19 hospitalsKS$2,117Arkansas: median $2,132 across 10 hospitalsAR$2,132Tennessee: median $5,898 across 13 hospitalsTN$5,898North Carolina: 8 hospitals filed a usable price — fewer than 10, so no figureNCSouth Carolina: median $9,654 across 11 hospitalsSC$9,654Oklahoma: median $1,494 across 14 hospitalsOK$1,494Louisiana: median $11,775 across 11 hospitalsLA$11,775Mississippi: 6 hospitals filed a usable price — fewer than 10, so no figureMSAlabama: median $6,476 across 14 hospitalsAL$6,476Georgia: median $7,906 across 12 hospitalsGA$7,906Hawaii: 7 hospitals filed a usable price — fewer than 10, so no figureHITexas: median $7,253 across 34 hospitalsTX$7,253Florida: median $7,171 across 11 hospitalsFL$7,171
Cash price by state, most expensive first. National median $3,681. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
Louisiana LA11$11,775+220%$8,902 – $17,210
South Carolina SC11$9,654+162%$4,031 – $40,345
Georgia GA12$7,906+115%$4,615 – $17,100
Idaho ID14$7,514+104%$1,434 – $12,106
Texas TX34$7,253+97%$5,419 – $13,305
Florida FL11$7,171+95%$2,545 – $26,601
New Jersey NJ33$6,839+86%$4,042 – $8,415
Alabama AL14$6,476+76%$2,008 – $20,365
Ohio OH28$6,034+64%$1,839 – $38,607
Tennessee TN13$5,898+60%$936 – $14,352
Pennsylvania PA25$5,050+37%$463 – $11,093
Missouri MO21$4,719+28%$1,122 – $11,162
Minnesota MN27$4,367+19%$1,503 – $5,309
New York NY44$4,265+16%$1,200 – $8,454
Wisconsin WI38$3,739+2%$3,469 – $9,187
Arizona AZ10$3,619−2%$771 – $19,272
California CA51$3,255−12%$2,112 – $14,773
Michigan MI36$3,129−15%$1,590 – $9,978
Nebraska NE19$2,256−39%$1,061 – $3,018
Arkansas AR10$2,132−42%$1,405 – $2,816
Kansas KS19$2,117−42%$713 – $9,823
Oregon OR22$1,947−47%$1,320 – $2,363
West Virginia WV16$1,920−48%$752 – $4,675
Indiana IN13$1,864−49%$1,126 – $38,284
Montana MT10$1,843−50%$1,050 – $2,285
Iowa IA29$1,752−52%$1,628 – $2,152
Illinois IL23$1,752−52%$1,126 – $4,813
Washington WA18$1,729−53%$1,228 – $7,239
Colorado CO12$1,517−59%$1,208 – $4,022
Oklahoma OK14$1,494−59%$1,494 – $8,780
New Hampshire NH10$795−78%$617 – $1,668
Kentucky KY9not enough hospitals filed a usable price
Virginia VA9not enough hospitals filed a usable price
Vermont VT9not enough hospitals filed a usable price
North Carolina NC8not enough hospitals filed a usable price
Hawaii HI7not enough hospitals filed a usable price
Nevada NV7not enough hospitals filed a usable price
Mississippi MS6not enough hospitals filed a usable price
Wyoming WY6not enough hospitals filed a usable price
Alaska AK5not enough hospitals filed a usable price
Massachusetts MA5not enough hospitals filed a usable price
New Mexico NM4not enough hospitals filed a usable price
North Dakota ND3not enough hospitals filed a usable price
South Dakota SD3not enough hospitals filed a usable price
Maine ME2not enough hospitals filed a usable price
Utah UT2not enough hospitals filed a usable price
Connecticut CT1not enough hospitals filed a usable price
Delaware DE1not enough hospitals filed a usable price
Maryland MD1not 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 $3,681.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care529$5,124$1,580 – $14,613
Children’s23$3,431$1,773 – $6,494
Critical access184$1,950$1,126 – $4,367
Ownership
For-profit92$9,368$2,653 – $22,426
Government130$2,197$1,301 – $8,454
Non-profit514$3,530$1,405 – $9,654
System affiliation
Part of a system550$3,901$1,536 – $13,048
Independent186$2,314$1,253 – $7,410

Cash price vs list price

Median list price (chargemaster)$4,825
Median cash price$3,681
Cash as a share of list, median hospital64%

At the typical hospital, asking for the cash price cuts the list price by about 36%. 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

334 hospitals filed a usable inpatient cash price for this code. The median is $2,250 and the average of the middle 60% is $2,886; most fall between $1,126 and $7,410.

Cash price percentiles, inpatient, across 334 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
$790$1,320$2,250$5,629$14,613

The most expensive tenth of hospitals charges at least 19× what the cheapest tenth charges ($790 vs $14,613).

Of the 370 hospitals that filed this code inpatient, 334 gave a usable cash price; 16 carried a plausibility flag, 0 filed a number their own filing marks as not a price, 0 gave an estimate, and 20 a list price only.

How complete is this

736 of the 3,956 hospitals with a price file in our corpus (19%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 816 hospitals that filed this code at all gave us
Usable cash price — counted736
Cash price carrying a plausibility flag — shown on the compare tool, excluded here49
A number the filing itself marks as not a price (a placeholder, a ratio) — excluded0
An estimate rather than a filed cash price — excluded8
A list price only, no cash figure — excluded23
Hospitals that filed this code816

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 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 Arthroplasty knee family.

Hospitals file this code under descriptions such as Ligamentous Reconstruction Knee Extra-Articular.

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 outside the joint (CPT 27427) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-27427-knee-ligament-reconstruction-outside-the-joint