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Endoskeletal Knee, Polycentric, Friction Swing and Stance

Illinois rates for HCPCS L5818

Addition, endoskeletal knee-shin system, polycentric, friction swing and stance phase control

Rates data updated July 2026.

How much does Endoskeletal Knee, Polycentric, Friction Swing and Stance cost?

$661

Typical negotiated rate. In Illinois, July 2026.

Insurers have agreed to pay about $661 for this service. The price depends on where it is billed: about $617 from a physician practice, and about $1,175 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 6 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$617$575 to $1,072
FacilityA hospital or hospital-owned outpatient department$1,175$575 to $2,089

How much rates vary

Facilitymedian $1,175 · 10th to 90th $575 to $5,888Professionalmedian $617 · 10th to 90th $537 to $1,259
$500$1K$2K$5K$10Kfacility $1,175professional $617

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
$575.44
Median
$575.44
Typical High
$1,174.90
Aetna
Setting
Professional
Modifier
Global
Typical Low
$537.03
Median
$575.44
Typical High
$1,174.90
BCBS
Setting
Facility
Modifier
Global
Typical Low
$1,380.38
Median
$2,238.72
Typical High
$7,943.28
BCBS
Setting
Professional
Modifier
Global
Typical Low
$870.96
Median
$891.25
Typical High
$891.25
Cigna
Setting
Facility
Modifier
Global
Typical Low
$776.25
Median
$812.83
Typical High
$1,513.56
Cigna
Setting
Professional
Modifier
Global
Typical Low
$588.84
Median
$588.84
Typical High
$1,348.96
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$977.24
Median
$1,318.26
Typical High
$1,659.59
Hally Health
Setting
Facility
Modifier
Global
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$1,513.56
Median
$1,513.56
Typical High
$1,513.56
Molina
Setting
Professional
Modifier
Global
Typical Low
$602.56
Median
$602.56
Typical High
$870.96
United
Setting
Facility
Modifier
Global
Typical Low
$776.25
Median
$933.25
Typical High
$1,258.93
United
Setting
Professional
Modifier
Global
Typical Low
$478.63
Median
$616.60
Typical High
$1,023.29

Where Illinois sits

The same service costs 4.0 times more in Hawaii than in Nebraska. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Illinois· 36th of 51

$661

HI $2,042NE $513

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.