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Endoskeletal Knee, Microprocessor Stance Phase Control

Illinois rates for HCPCS L5858

Addition to lower extremity prosthesis, endoskeletal knee-shin system, microprocessor control feature, stance phase only, includes electronic sensor(s), any type

Rates data updated July 2026.

How much does Endoskeletal Knee, Microprocessor Stance Phase Control cost?

$12,023

Typical negotiated rate. In Illinois, July 2026.

Insurers have agreed to pay about $12,023 for this service. The price depends on where it is billed: about $12,023 from a physician practice, and about $22,909 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$12,023$11,220 to $18,621
FacilityA hospital or hospital-owned outpatient department$22,909$11,220 to $40,738

How much rates vary

Facilitymedian $22,909 · 10th to 90th $11,220 to $114,815Professionalmedian $12,023 · 10th to 90th $9,772 to $23,442
$10K$20K$50K$100K$200Kfacility $22,909professional $12,023

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
$11,220.18
Median
$11,220.18
Typical High
$22,908.68
Aetna
Setting
Professional
Modifier
Global
Typical Low
$9,772.37
Median
$11,220.18
Typical High
$22,908.68
BCBS
Setting
Facility
Modifier
Global
Typical Low
$25,703.96
Median
$41,686.94
Typical High
$154,881.66
Cigna
Setting
Facility
Modifier
Global
Typical Low
$14,454.40
Median
$14,454.40
Typical High
$25,118.86
Cigna
Setting
Professional
Modifier
Global
Typical Low
$10,715.19
Median
$10,715.19
Typical High
$24,547.09
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$19,054.61
Median
$25,118.86
Typical High
$31,622.78
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
$28,840.32
Median
$28,840.32
Typical High
$28,840.32
Molina
Setting
Professional
Modifier
Global
Typical Low
$13,803.84
Median
$13,803.84
Typical High
$19,498.45
United
Setting
Facility
Modifier
Global
Typical Low
$13,182.57
Median
$18,197.01
Typical High
$22,908.68
United
Setting
Professional
Modifier
Global
Typical Low
$8,709.64
Median
$11,220.18
Typical High
$19,054.61

Where Illinois sits

The same service costs 2.3 times more in South Dakota 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· 34th of 51

$12,023

SD $22,387DE $9,772

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.