Surgery and procedures CPT 27447 Washington Outpatient

Knee replacement cost in Washington

In Washington, 10 hospitals publish a cash price for total knee replacement: from $3,290.30 to $56,023.35, with a median of $21,564.61. The lowest price is at Astria Toppenish Hospital (Toppenish). The highest price is 17.0× the lowest.

  • The median here, $21,564.61, is 41% above the US median of $15,247.33.
  • Washington ranks 26th of 38 states by median, cheapest first.
  • Every hospital here lists a cash price below its full list price.

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 27447. Prices for both sides of the body and inpatient prices are not mixed in. Collected Oct 30, 2026. See them on a map

Lowest$3,290.30Astria Toppenish Hospital
Median$21,564.61half of hospitals charge less
Highest$56,023.35in Washington
Lowest saves$18,274.31vs the median

Hospitals in Washington, cheapest first

HospitalCash priceList priceFile date
Astria Toppenish Hospital lowest Toppenish · Yakima, WA 27447 Arthroplasty, knee, condyle and plateau; med $3,290.30 $5,062.00 Apr 1, 2026
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Kittitas County Public Hospital Dist 1 Ellensburg · Ellensburg, WA Replacement of knee joint, both sides of knee $3,315.00 $3,900.00 Oct 7, 2026
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Lourdes Health Pasco · Kennewick-Richland, WA TOTAL KNEE ARTHROPLASTY $4,531.91 $11,329.76 Jul 10, 2026
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Forks Community Hospital Forks · Port Townsend, WA Replacement of knee joint, both sides of knee $14,281.60 $17,852.00 Oct 27, 2026
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Virginia Mason Medical Center Seattle · Seattle-Tacoma-Bellevue, WA ARTHROPLASTY KNEE, MED AND LAT COMP W/WO PATELLA RESURF $18,264.12 $35,812.00 Jan 1, 2026
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PeaceHealth Southwest Medical Center Vancouver · Portland-Vancouver-Hillsboro, OR-WA REPLACEMENT OF KNEE JOINT; BOTH SIDES OF KNEE $24,865.10 $38,254.00 Mar 20, 2026
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Kaiser Permanente Central Hospital Seattle · Seattle-Tacoma-Bellevue, WA TOTAL KNEE ARTHROPLASTY $30,320.00 $37,900.00 Apr 1, 2026
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PeaceHealth St John Medical Center one side Longview · Longview-Kelso, WA REPLACEMENT OF KNEE JOINT; BOTH SIDES OF KNEE $32,816.34 $50,486.67 Mar 21, 2026
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PeaceHealth St Joseph Medical Center one side Bellingham · Bellingham, WA REPLACEMENT OF KNEE JOINT; BOTH SIDES OF KNEE $32,969.30 $50,722.00 Mar 21, 2026
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Valley Medical Center Renton · Seattle-Tacoma-Bellevue, WA Arthrp Kne Condyle&Platu Medial&Lat Compartments $56,023.35 $80,033.36 Mar 12, 2026
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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.

By metro area

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

Metro areaHospitalsLowestMedian
Seattle-Tacoma-Bellevue, WA 3 $18,264.12 $30,320.00
Bellingham, WA 1 $32,969.30 $32,969.30
Ellensburg, WA 1 $3,315.00 $3,315.00
Kennewick-Richland, WA 1 $4,531.91 $4,531.91
Longview-Kelso, WA 1 $32,816.34 $32,816.34
Port Townsend, WA 1 $14,281.60 $14,281.60
Portland-Vancouver-Hillsboro, OR-WA 1 $24,865.10 $24,865.10
Yakima, WA 1 $3,290.30 $3,290.30
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 knee replacement is, what the price covers and why prices differ: Knee replacement explained.

Total knee replacement in other states

Median cash price across the state's hospitals.