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Knee Joints, Polycentric, Below-Knee

Connecticut 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?

$363

Typical negotiated rate. In Connecticut, October 2026.

Insurers have agreed to pay about $363 for this service. The price depends on where it is billed: about $363 from a physician practice, and about $631 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$363 to $380
FacilityA hospital or hospital-owned outpatient department$631$398 to $813

How much rates vary

Facilitymedian $631 · 10th to 90th $398 to $871Professionalmedian $363 · 10th to 90th $295 to $457
$500$1Kfacility $631professional $363

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

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Professional
Modifier
None
Typical Low
$257.04
Median
$380.19
Typical High
$380.19
Anthem BCBS
Setting
Facility
Modifier
None
Typical Low
$630.96
Median
$812.83
Typical High
$977.24
Anthem BCBS
Setting
Professional
Modifier
None
Typical Low
$363.08
Median
$363.08
Typical High
$389.05
Anthem BCBS
Setting
Professional
Modifier
RR · Rental
Typical Low
$36.31
Median
$36.31
Typical High
$36.31
Anthem BCBS
Setting
Professional
Modifier
UE · Used equipment
Typical Low
$269.15
Median
$269.15
Typical High
$269.15
Cigna
Setting
Facility
Modifier
None
Typical Low
$398.11
Median
$398.11
Typical High
$416.87
Cigna
Setting
Professional
Modifier
None
Typical Low
$295.12
Median
$295.12
Typical High
$398.11
ConnectiCare
Setting
Facility
Modifier
None
Typical Low
$512.86
Median
$512.86
Typical High
$512.86
ConnectiCare
Setting
Professional
Modifier
None
Typical Low
$389.05
Median
$537.03
Typical High
$741.31
Health New England
Setting
Professional
Modifier
None
Typical Low
$380.19
Median
$380.19
Typical High
$380.19
United
Setting
Professional
Modifier
None
Typical Low
$302.00
Median
$398.11
Typical High
$457.09
4 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$131.83
Median
$190.55
Typical High
$190.55
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$52.48
Median
$75.86
Typical High
$75.86
Aetna
Setting
Professional
Modifier
55 · Aftercare only
Typical Low
$39.81
Median
$57.54
Typical High
$57.54
Aetna
Setting
Professional
Modifier
56 · Pre-op care only
Typical Low
$26.30
Median
$38.02
Typical High
$38.02

Where Connecticut 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.

Connecticut· 37th of 51

$363

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.