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Partial Knee Replacement, One Side of the Joint

Nationwide rates for HCPCS 27446

Replacement of the worn surfaces on only one side of the knee: the damaged bone ends there are resurfaced with metal and plastic parts, while the healthy remainder of the joint and its ligaments are left alone. It suits arthritis confined to one part of the knee. Recovery is generally quicker and the knee feels more natural than after a full replacement, but more of the original joint remains that could wear out later.

Rates data updated July 2026.

How much does Partial Knee Replacement, One Side of the Joint cost?

$11,070

Typical total for the visit. Nationwide, July 2026.

Insurers have agreed to pay about $11,070 for this procedure. That total is two separate charges: $1,738 to the doctor who performs it, and $9,333 to the hospital or surgery center where it takes place. Done somewhere without a facility charge, you pay only the first.

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 60 insurance carriers under federal price transparency rules.

What's inside this number

Part of the billTypicalRange
Physician feeThe doctor who performs it$1,738$1,288 to $2,455
Facility feeThe hospital or surgery center$9,333$3,631 to $17,783

How much rates vary

Facilitymedian $9,333 · 10th to 90th $1,445 to $28,840Professionalmedian $1,738 · 10th to 90th $1,072 to $4,169
$100$500$2K$10K$50Kfacility $9,333professional $1,738

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
$1,318.26
Median
$6,606.93
Typical High
$22,908.68
Aetna
Setting
Facility
Modifier
50 · Both sides
Typical Low
$5,623.41
Median
$10,000.00
Typical High
$25,703.96
BCBS
Setting
Facility
Modifier
Global
Typical Low
$5,754.40
Median
$16,982.44
Typical High
$41,686.94
Cigna
Setting
Facility
Modifier
Global
Typical Low
$1,348.96
Median
$3,630.78
Typical High
$14,791.08
Cigna
Setting
Facility
Modifier
22 · Increased work
Typical Low
$2,187.76
Median
$2,187.76
Typical High
$2,187.76
Cigna
Setting
Facility
Modifier
AS · PA/NP assist
Typical Low
$181.97
Median
$181.97
Typical High
$181.97
United
Setting
Facility
Modifier
Global
Typical Low
$3,715.35
Median
$12,022.64
Typical High
$32,359.37

What it costs in each state

The same service costs 4.5 times more in Wisconsin than in Maryland. 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.

Physician feeFacility fee

Touch or drag across the chart to see any state's rate.

WI $19,613MD $4,349

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.