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Prosthetic Knee, Endoskeletal Four-Bar, Friction Swing

Massachusetts rates for HCPCS L5611

Addition to lower extremity, endoskeletal system, above knee (AK), knee disarticulation, four-bar linkage, with friction swing phase control

Rates data updated July 2026.

How much does Prosthetic Knee, Endoskeletal Four-Bar, Friction Swing cost?

$2,239

Typical negotiated rate. In Massachusetts, July 2026.

Insurers have agreed to pay about $2,239 for this service. The price depends on where it is billed: about $2,089 from a physician practice, and about $3,162 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 9 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$2,089$1,122 to $2,239
FacilityA hospital or hospital-owned outpatient department$3,162$2,455 to $3,890

How much rates vary

Facilitymedian $3,162 · 10th to 90th $1,202 to $5,129Professionalmedian $2,089 · 10th to 90th $977 to $3,388
$10.0$100.0$1.0K$10.0Kfacility $3,162professional $2,089

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$1,122.02
Median
$1,122.02
Typical High
$1,122.02
Aetna
Setting
Professional
Modifier
Global
Typical Low
$870.96
Median
$1,122.02
Typical High
$3,548.13
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$2,290.87
Median
$2,630.27
Typical High
$11,481.54
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$1,000.00
Median
$1,995.26
Typical High
$3,162.28
BCBS
Setting
Facility
Modifier
Global
Typical Low
$2,754.23
Median
$3,388.44
Typical High
$4,466.84
Cigna
Setting
Facility
Modifier
Global
Typical Low
$1,230.27
Median
$1,479.11
Typical High
$1,819.70
Cigna
Setting
Professional
Modifier
Global
Typical Low
$891.25
Median
$891.25
Typical High
$1,513.56
Fallon Health
Setting
Facility
Modifier
Global
Typical Low
$60.26
Median
$3,630.78
Typical High
$9,772.37
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$2,238.72
Median
$2,238.72
Typical High
$3,388.44
Health New England
Setting
Professional
Modifier
Global
Typical Low
$1,230.27
Median
$1,230.27
Typical High
$1,513.56
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$2,290.87
Median
$2,630.27
Typical High
$11,481.54
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$1,000.00
Median
$1,995.26
Typical High
$3,162.28
United
Setting
Facility
Modifier
Global
Typical Low
$812.83
Median
$1,445.44
Typical High
$2,630.27
United
Setting
Professional
Modifier
Global
Typical Low
$1,000.00
Median
$1,995.26
Typical High
$2,238.72

Where Massachusetts sits

The same service costs 3.2 times more in Hawaii than in Nebraska. Every bar is a state, most expensive first. Pick one to see its carriers and full range.

Massachusetts $2,239 · 4th of 51
HI $2,754NE $851

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.