SelfPayRates
Surgery and procedures CPT 27446 Washington Outpatient

Partial knee replacement cost in Washington

In Washington, 7 hospitals publish a cash price for partial knee replacement (one compartment): from $2,509.00 to $53,377.55, with a median of $18,761.43. The lowest price is at Astria Toppenish Hospital (Toppenish). The highest price is 21.3× the lowest.

  • The median here, $18,761.43, is 23% above the US median of $15,226.08.
  • Washington ranks 17th of 27 states by median, cheapest first.
  • 1 of 7 hospitals list a cash price equal to their full list price, with no self-pay discount.

Washington law (RCW 70.170.060) requires hospital charity care: patients with family income up to 300% of the federal poverty level owe nothing at hospitals in large health systems (200% at other hospitals), with 75% and 50% discounts up to 400% (300% at other hospitals). It covers the part of the bill a patient owes, insured or not. Ask the hospital for its charity care application. Other states' laws.

Outpatient cash prices, one line per hospital — its lowest listed price for code 27446. Prices for both sides of the body and inpatient prices are not mixed in. Collected Oct 30, 2026. See them on a map

Lowest$2,509.00Astria Toppenish Hospital
Median$18,761.43half of hospitals charge less
Highest$53,377.55in Washington
Lowest saves$16,252.43vs the median

Hospitals in Washington, cheapest first

HospitalCash priceList priceFile date
Astria Toppenish Hospital lowest Toppenish · Yakima, WA 27446 Arthroplasty, knee, condyle and plateau; med $2,509.00 $3,860.00 Apr 1, 2026
source file
Forks Community Hospital Forks · Port Townsend, WA Replacement of knee joint on side of knee $4,092.80 $5,116.00 Oct 27, 2026
source file
PeaceHealth St Joseph Medical Center one side Bellingham · Bellingham, WA REPLACEMENT OF KNEE JOINT ON SIDE OF KNEE $18,642.87 $28,681.34 Mar 21, 2026
source file
Lake Chelan Community Hospital Chelan · Wenatchee-East Wenatchee, WA Replacement of knee joint on side of knee $18,761.43 $18,761.43 Sep 1, 2026
source file
PeaceHealth Southwest Medical Center one side Vancouver · Portland-Vancouver-Hillsboro, OR-WA REPLACEMENT OF KNEE JOINT ON SIDE OF KNEE $18,893.34 $29,066.67 Mar 20, 2026
source file
Virginia Mason Medical Center Seattle · Seattle-Tacoma-Bellevue, WA ARTHROPLASTY KNEE CONDYLE AND PLATEAU,MEDIAL OR LATERAL $20,426.52 $40,052.00 Jan 1, 2026
source file
Valley Medical Center Renton · Seattle-Tacoma-Bellevue, WA Arthrp Knee Condyle&Plateau Medial/Lat Cmprt $53,377.55 $76,253.65 Mar 12, 2026
source file
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
File date When the hospital last updated its price file, as the file says itself. A dash means the file gives no date.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More

By metro area

Each metro page compares every listing, including prices for both sides of the body.

Metro areaHospitalsLowestMedian
Seattle-Tacoma-Bellevue, WA 2 $20,426.52 $36,902.04
Bellingham, WA 1 $18,642.87 $18,642.87
Port Townsend, WA 1 $4,092.80 $4,092.80
Portland-Vancouver-Hillsboro, OR-WA 1 $18,893.34 $18,893.34
Wenatchee-East Wenatchee, WA 1 $18,761.43 $18,761.43
Yakima, WA 1 $2,509.00 $2,509.00
Market A metro area (as the Census Bureau defines it) or, outside metro areas, a town. Each links to every hospital price there.
Hospitals How many hospitals publish a cash price for this code here. Each hospital counts once, at its lowest outpatient cash price.
Lowest The lowest cash price among those hospitals.
Median The middle cash price: half of the hospitals charge less, half charge more. One price per hospital. More

What partial knee replacement is, what the price covers and why prices differ: Partial knee replacement explained.

Partial knee replacement (one compartment) in other states

Median cash price across the state's hospitals.