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Prosthetic Knee, Polycentric, Mechanical Stance Lock

Massachusetts rates for HCPCS L5816

Addition, endoskeletal knee-shin system, polycentric, mechanical stance phase lock

Rates data updated July 2026.

How much does Prosthetic Knee, Polycentric, Mechanical Stance Lock cost?

$955

Typical negotiated rate. In Massachusetts, July 2026.

Insurers have agreed to pay about $955 for this service. The price depends on where it is billed: about $955 from a physician practice, and about $1,380 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$955$513 to $955
FacilityA hospital or hospital-owned outpatient department$1,380$1,047 to $1,660

How much rates vary

Facilitymedian $1,380 · 10th to 90th $589 to $2,042Professionalmedian $955 · 10th to 90th $479 to $1,479
$100$200$500$1K$2K$5Kfacility $1,380professional $955

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
$478.63
Median
$478.63
Typical High
$478.63
Aetna
Setting
Professional
Modifier
Global
Typical Low
$457.09
Median
$501.19
Typical High
$1,513.56
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$977.24
Median
$1,122.02
Typical High
$6,606.93
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$501.19
Median
$851.14
Typical High
$1,348.96
BCBS
Setting
Facility
Modifier
Global
Typical Low
$1,174.90
Median
$1,445.44
Typical High
$1,905.46
Cigna
Setting
Facility
Modifier
Global
Typical Low
$630.96
Median
$660.69
Typical High
$776.25
Cigna
Setting
Professional
Modifier
Global
Typical Low
$478.63
Median
$478.63
Typical High
$707.95
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
$954.99
Median
$954.99
Typical High
$1,445.44
Health New England
Setting
Professional
Modifier
Global
Typical Low
$645.65
Median
$645.65
Typical High
$645.65
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$977.24
Median
$1,122.02
Typical High
$6,606.93
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$501.19
Median
$851.14
Typical High
$1,348.96
United
Setting
Facility
Modifier
Global
Typical Low
$426.58
Median
$758.58
Typical High
$1,380.38
United
Setting
Professional
Modifier
Global
Typical Low
$501.19
Median
$891.25
Typical High
$977.24

Where Massachusetts sits

The same service costs 4.5 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.

Massachusetts· 8th of 51

$955

HI $2,042DE $457

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.