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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 October 2026.

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

$398

Typical negotiated rate. In Illinois, October 2026.

Insurers have agreed to pay about $398 for this service. The price depends on where it is billed: about $363 from a physician practice, and about $912 from a hospital or other facility.

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.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$363$331 to $603
FacilityA hospital or hospital-owned outpatient department$912$759 to $1,549

How much rates vary

Facilitymedian $912 · 10th to 90th $398 to $3,890Professionalmedian $363 · 10th to 90th $295 to $776
$200$500$1K$2K$5Kfacility $912professional $363

Distribution of negotiated rates across all payers (price axis is log-scale). Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$331.13
Median
$331.13
Typical High
$676.08
Aetna
Setting
Professional
Modifier
None
Typical Low
$331.13
Median
$331.13
Typical High
$549.54
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$165.96
Median
$165.96
Typical High
$269.15
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$66.07
Median
$66.07
Typical High
$109.65
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$48.98
Median
$48.98
Typical High
$81.28
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$33.11
Median
$33.11
Typical High
$54.95
BCBS Illinois
Setting
Facility
Modifier
None
Typical Low
$812.83
Median
$1,122.02
Typical High
$4,570.88
BCBS Illinois
Setting
Professional
Modifier
None
Typical Low
$512.86
Median
$512.86
Typical High
$512.86
Cigna
Setting
Facility
Modifier
None
Typical Low
$398.11
Median
$398.11
Typical High
$398.11
Cigna
Setting
Professional
Modifier
None
Typical Low
$295.12
Median
$295.12
Typical High
$398.11
Hally Health
Setting
Professional
Modifier
None
Typical Low
$562.34
Median
$676.08
Typical High
$912.01
Hally Health
Setting
Facility
Modifier
None
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
None
Typical Low
$870.96
Median
$870.96
Typical High
$870.96
Molina
Setting
Professional
Modifier
None
Typical Low
$501.19
Median
$501.19
Typical High
$562.34
United
Setting
Facility
Modifier
None
Typical Low
$398.11
Median
$676.08
Typical High
$954.99
United
Setting
Professional
Modifier
None
Typical Low
$295.12
Median
$331.13
Typical High
$776.25

Where Illinois sits

The same service costs 3.7 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· 28th of 51

$398

HI $1,096DE $295

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.