Partial knee replacement cost in Boise City, ID — inpatient
In Boise City, ID, 3 hospitals list a cash price for partial knee replacement (one compartment) as an inpatient: from $3,801.00 to $19,343.00, with a median of $19,343.00. The lowest listed price is at Saint Alphonsus Medical Center - Nampa — $15,542.00 less than the median here. Across Idaho, the median is $15,889.00 at 7 hospitals.
Cash prices at 3 facilities across 2 cities for code 27446, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Mar 31, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Boise City, ID.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Saint Alphonsus Medical Center - Nampa lowest Nampa, ID · (208) 463-5000 PR Arthroplasty Knee Condyle and Plateau Medial or Lateral Compartment | $3,801.00 | — | $442.78–$2,282.28 | — | Mar 31, 2026 source file |
| St Luke's Regional Medical Center Boise, ID · (208) 381-2222 | $19,343.00 | $19,343.00 | — | — | — source file |
| St Luke's Nampa Medical Center Nampa, ID · (208) 505-2000 | $19,343.00 | $19,343.00 | — | — | — source file |
| St Luke's Nampa Medical Center Nampa, ID · (208) 505-2000 | $19,343.00 | $19,343.00 | — | — | — source file |
Inpatient: lowest $3,801.00, median $19,343.00, highest $19,343.00 — a 5.1× difference within the same market.
As an outpatient, the same code is billed by 4 facilities here, median $22,469.46 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is not below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
This code covers replacing only the worn part of the knee joint, usually the inner side, instead of the whole joint.
What the price covers
The hospital price usually covers the operating room, recovery and supplies. The surgeon and anesthesia usually bill separately.