go back

Endoskeletal Knee, Powered Flexion/Extension Assist

Washington, DC rates for HCPCS L5859

Addition to lower extremity prosthesis, endoskeletal knee-shin system, powered and programmable flexion/extension assist control, includes any type motor(s)

Rates data updated July 2026.

How much does Endoskeletal Knee, Powered Flexion/Extension Assist cost?

$9,120

Typical negotiated rate. In Washington, DC, July 2026.

Insurers have agreed to pay about $9,120 for this service. The price depends on where it is billed: about $9,120 from a physician practice, and about $9,120 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 5 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$9,120$8,318 to $9,120
FacilityA hospital or hospital-owned outpatient department$9,120$9,120 to $9,120

How much rates vary

Facilitymedian $9,120 · 10th to 90th $9,120 to $25,704Professionalmedian $9,120 · 10th to 90th $7,943 to $10,233
$10K$20Kfacility $9,120professional $9,120

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. Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$9,120.11
Median
$9,120.11
Typical High
$9,120.11
Aetna
Setting
Professional
Modifier
Global
Typical Low
$7,943.28
Median
$9,120.11
Typical High
$9,120.11
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$10,232.93
Median
$10,232.93
Typical High
$12,022.64
Cigna
Setting
Facility
Modifier
Global
Typical Low
$9,772.37
Median
$9,772.37
Typical High
$9,772.37
Cigna
Setting
Professional
Modifier
Global
Typical Low
$8,317.64
Median
$8,317.64
Typical High
$10,000.00
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$11,220.18
Median
$14,791.08
Typical High
$33,884.42
United
Setting
Facility
Modifier
Global
Typical Low
$25,703.96
Median
$25,703.96
Typical High
$25,703.96
United
Setting
Professional
Modifier
Global
Typical Low
$5,623.41
Median
$8,912.51
Typical High
$13,489.63

Where Washington, DC sits

The same service costs 2.8 times more in Kansas than in California. 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.

Washington, DC· 33rd of 51

$9,120

KS $21,380CA $7,586

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.