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Procedure price report · Treatment, fracture or dislocation of lower extremity (other than hip or femur)

Knee dislocation surgery without ligament repair

CPT 27556the billing code this page is about

Open surgery to reposition a dislocated knee, with or without pins or other fixation, and without repairing the torn ligaments.

Hospitals typically charge $2,250 cash for this outpatient procedure — the median across 177 hospitals that filed a usable cash price; the average of the middle 60% is $2,738. Most fall between $1,273 and $5,855 (20th–80th percentile).

Hospitals
177
States
41
Filings dated
Jan 2024 – 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 177 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
$820$1,443$2,250$4,943$9,072

The most expensive tenth of hospitals charges at least 11× what the cheapest tenth charges ($820 vs $9,072).

How the prices are spread

$593 – $797: 9 hospitals$593$797 – $1,072: 11 hospitals$1,072 – $1,443: 11 hospitals$1,072$1,443 – $1,941: 39 hospitals$1,941 – $2,611: 18 hospitals$1,941$2,611 – $3,512: 17 hospitals$3,512 – $4,725: 18 hospitals$3,512$4,725 – $6,357: 12 hospitals$6,357 – $8,552: 8 hospitals$6,357$8,552 – $11,504: 18 hospitals$8,552median $2,250price bands are equal on a log scale
Hospitals per price band (161 of 177 — the bands cover the 5th to 95th percentile)
FromToHospitals
$593$7979
$797$1,07211
$1,072$1,44311
$1,443$1,94139
$1,941$2,61118
$2,611$3,51217
$3,512$4,72518
$4,725$6,35712
$6,357$8,5528
$8,552$11,50418

Against Medicare

Medicare pays (OPPS 2026, national rate)$7,413
Median cash price$2,250
Cash as a multiple of Medicare0.30×

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 $2,250.

Alaska: 1 hospital 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: 1 hospital filed a usable price — fewer than 10, so no figureWAIdaho: 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: 2 hospitals filed a usable price — fewer than 10, so no figureNDMinnesota: 3 hospitals filed a usable price — fewer than 10, so no figureMNIllinois: median $1,610 across 11 hospitalsIL$1,610Wisconsin: 8 hospitals filed a usable price — fewer than 10, so no figureWIMichigan: median $1,462 across 12 hospitalsMI$1,462New York: median $2,686 across 21 hospitalsNY$2,686Massachusetts: no hospital in the corpus filed a usable priceMAOregon: median $1,664 across 12 hospitalsOR$1,664Nevada: 3 hospitals filed a usable price — fewer than 10, so no figureNVWyoming: 2 hospitals filed a usable price — fewer than 10, so no figureWYSouth Dakota: 1 hospital filed a usable price — fewer than 10, so no figureSDIowa: 3 hospitals filed a usable price — fewer than 10, so no figureIAIndiana: no hospital in the corpus filed a usable priceINOhio: 7 hospitals filed a usable price — fewer than 10, so no figureOHPennsylvania: median $642 across 16 hospitalsPA$642New Jersey: median $5,339 across 13 hospitalsNJ$5,339Connecticut: no hospital in the corpus filed a usable priceCTRhode Island: no hospital in the corpus filed a usable priceRICalifornia: 5 hospitals filed a usable price — fewer than 10, so no figureCAUtah: no hospital in the corpus filed a usable priceUTColorado: 1 hospital filed a usable price — fewer than 10, so no figureCONebraska: 2 hospitals filed a usable price — fewer than 10, so no figureNEMissouri: 3 hospitals filed a usable price — fewer than 10, so no figureMOKentucky: 1 hospital filed a usable price — fewer than 10, so no figureKYWest Virginia: 4 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: 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: 1 hospital filed a usable price — fewer than 10, so no figureKSArkansas: 2 hospitals filed a usable price — fewer than 10, so no figureARTennessee: 2 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: 3 hospitals filed a usable price — fewer than 10, so no figureSCOklahoma: median $1,443 across 11 hospitalsOK$1,443Louisiana: 1 hospital filed a usable price — fewer than 10, so no figureLAMississippi: no hospital in the corpus filed a usable priceMSAlabama: 1 hospital filed a usable price — fewer than 10, so no figureALGeorgia: 2 hospitals filed a usable price — fewer than 10, so no figureGAHawaii: 1 hospital filed a usable price — fewer than 10, so no figureHITexas: 4 hospitals filed a usable price — fewer than 10, so no figureTXFlorida: 2 hospitals filed a usable price — fewer than 10, so no figureFL
Cash price by state, most expensive first. National median $2,250. A state needs at least 10 hospitals with a usable price to show a figure.
StateHospitalsMedianvs national20th–80th
New Jersey NJ13$5,339+137%$4,350 – $6,311
New York NY21$2,686+19%$2,192 – $8,613
Oregon OR12$1,664−26%$1,617 – $2,890
Illinois IL11$1,610−28%$680 – $2,567
Michigan MI12$1,462−35%$1,258 – $9,978
Oklahoma OK11$1,443−36%$1,443 – $1,443
Pennsylvania PA16$642−71%$543 – $12,525
Wisconsin WI8not enough hospitals filed a usable price
Ohio OH7not enough hospitals filed a usable price
California CA5not enough hospitals filed a usable price
New Hampshire NH4not enough hospitals filed a usable price
Texas TX4not enough hospitals filed a usable price
West Virginia WV4not enough hospitals filed a usable price
Arizona AZ3not enough hospitals filed a usable price
Iowa IA3not enough hospitals filed a usable price
Minnesota MN3not enough hospitals filed a usable price
Missouri MO3not enough hospitals filed a usable price
Nevada NV3not enough hospitals filed a usable price
South Carolina SC3not enough hospitals filed a usable price
Arkansas AR2not enough hospitals filed a usable price
Florida FL2not enough hospitals filed a usable price
Georgia GA2not enough hospitals filed a usable price
North Dakota ND2not enough hospitals filed a usable price
Nebraska NE2not enough hospitals filed a usable price
New Mexico NM2not enough hospitals filed a usable price
Tennessee TN2not enough hospitals filed a usable price
Vermont VT2not enough hospitals filed a usable price
Wyoming WY2not enough hospitals filed a usable price
Alaska AK1not enough hospitals filed a usable price
Alabama AL1not enough hospitals filed a usable price
Colorado CO1not enough hospitals filed a usable price
Hawaii HI1not enough hospitals filed a usable price
Idaho ID1not enough hospitals filed a usable price
Kansas KS1not enough hospitals filed a usable price
Kentucky KY1not enough hospitals filed a usable price
Louisiana LA1not enough hospitals filed a usable price
Montana MT1not enough hospitals filed a usable price
North Carolina NC1not enough hospitals filed a usable price
South Dakota SD1not enough hospitals filed a usable price
Virginia VA1not enough hospitals filed a usable price
Washington WA1not 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 $2,250.

Cash price by hospital segment. A segment needs at least 20 hospitals to show a figure.
SegmentHospitalsMedian20th–80th
Hospital type
Acute care144$2,201$1,241 – $6,839
Children’s8fewer than 20 hospitals
Critical access25$2,890$1,444 – $4,304
Ownership
For-profit21$2,443$680 – $10,468
Government25$2,171$1,444 – $6,564
Non-profit131$2,409$1,258 – $5,419
System affiliation
Part of a system133$2,443$1,251 – $6,839
Independent44$2,206$1,539 – $3,946

Cash price vs list price

Median list price (chargemaster)$2,620
Median cash price$2,250
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

100 hospitals filed a usable inpatient cash price for this code. The median is $1,617 and the average of the middle 60% is $1,708; most fall between $1,084 and $2,790.

Cash price percentiles, inpatient, across 100 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
$899$1,199$1,617$2,443$5,462

The most expensive tenth of hospitals charges at least 6.1× what the cheapest tenth charges ($899 vs $5,462).

Of the 112 hospitals that filed this code inpatient, 100 gave a usable cash price; 8 carried a plausibility flag, 0 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

177 of the 3,956 hospitals with a price file in our corpus (4%) filed a usable outpatient cash price for this code, and those are the hospitals every figure on this page is computed from.

What the 204 hospitals that filed this code at all gave us
Usable cash price — counted177
Cash price carrying a plausibility flag — shown on the compare tool, excluded here14
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 — excluded12
Hospitals that filed this code204

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 Treatment, fracture or dislocation of lower extremity (other than hip or femur) family.

Hospitals file this code under descriptions such as Open Tx Knee Dislocation W/O Ligamentous Repair.

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 dislocation surgery without ligament repair (CPT 27556) — cash price report,” computed September 25, 2026. https://hospitalrates.com/procedures/cpt-27556-knee-dislocation-surgery-without-ligament-repair