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Knee Joints, Polycentric, Below-Knee

Illinois rates for HCPCS L5677

Additions to lower extremity, below knee (BK), knee joints, polycentric, pair

Rates data updated July 2026.

How much does Knee Joints, Polycentric, Below-Knee cost?

$372

Typical negotiated rate. In Illinois, July 2026.

Insurers have agreed to pay about $372 for this service. The price depends on where it is billed: about $355 from a physician practice, and about $676 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$355$331 to $562
FacilityA hospital or hospital-owned outpatient department$676$331 to $1,202

How much rates vary

Facilitymedian $676 · 10th to 90th $331 to $3,467Professionalmedian $355 · 10th to 90th $295 to $692
$200$500$1K$2K$5Kfacility $676professional $355

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
$331.13
Median
$331.13
Typical High
$676.08
Aetna
Setting
Professional
Modifier
Global
Typical Low
$316.23
Median
$346.74
Typical High
$676.08
BCBS
Setting
Facility
Modifier
Global
Typical Low
$794.33
Median
$1,288.25
Typical High
$4,570.88
BCBS
Setting
Professional
Modifier
Global
Typical Low
$501.19
Median
$512.86
Typical High
$512.86
Cigna
Setting
Facility
Modifier
Global
Typical Low
$398.11
Median
$398.11
Typical High
$707.95
Cigna
Setting
Professional
Modifier
Global
Typical Low
$295.12
Median
$295.12
Typical High
$707.95
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$562.34
Median
$724.44
Typical High
$912.01
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
$870.96
Median
$870.96
Typical High
$870.96
Molina
Setting
Professional
Modifier
Global
Typical Low
$354.81
Median
$354.81
Typical High
$562.34
United
Setting
Facility
Modifier
Global
Typical Low
$398.11
Median
$549.54
Typical High
$676.08
United
Setting
Professional
Modifier
Global
Typical Low
$251.19
Median
$331.13
Typical High
$588.84

Where Illinois sits

The same service costs 4.2 times more in Hawaii than in Delaware. 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· 29th of 51

$372

HI $1,096DE $263

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.