Lab tests CPT 86431 Inpatient — admitted to hospital

Rheumatoid factor test cost in Salem, OR — inpatient

In Salem, OR, 3 hospitals list a cash price for rheumatoid factor (RF) test as an inpatient: from $3.90 to $41.34, with a median of $41.34. The lowest listed price is at Legacy Silverton Medical Center — $37.44 less than the median here. Across Oregon, the median is $40.30 at 39 hospitals.

Cash prices at 3 facilities across 3 cities for code 86431, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$3.90Legacy Silverton Medical Center
Median$41.34half pay less
Highest$41.34in this market
Difference10.6×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Salem, OR.

median
Lowest $3.90Highest $93.60

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Legacy Silverton Medical Center lowest Silverton, OR · (503) 873-1500 HC ANA 86431 $3.90 $6.00 — 35% Apr 1, 2026
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Legacy Silverton Medical Center Silverton, OR · (503) 873-1500 CHG RHEUMATOID FACTOR QUANTITATIVE $4.01 $6.17 — 35% Apr 1, 2026
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West Valley Hospital Dallas, OR · (503) 623-8301 HCHRG RHEUMATOID FACTOR, QT $41.34 $78.00 — 47% Apr 1, 2026
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Salem Hospital Salem, OR · (503) 561-5200 HCHRG RHEUMATOID FACTOR, QT $41.34 $78.00 — 47% Apr 1, 2026
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Legacy Silverton Medical Center Silverton, OR · (503) 873-1500 HC BODY FLUID RHEUMATOID FACTOR $51.35 $79.00 — 35% Apr 1, 2026
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Legacy Silverton Medical Center Silverton, OR · (503) 873-1500 HC RHEUMATOID FACTOR QUANT $93.60 $144.00 — 35% Apr 1, 2026
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Inpatient: lowest $3.90, median $41.34, highest $41.34 — a 10.6× difference within the same market.

As an outpatient, the same code is billed by 4 facilities here, median $41.34 — that is the price to compare if you are not being admitted.

What it is

Rheumatoid factor is an antibody found in many people with rheumatoid arthritis. The test is part of the workup for joint pain and swelling.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.

1 row held back from this comparison

It is priced below $1 or below a tenth of the national median for code 86431 ($38.28). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.

Legacy Silverton Medical Center Silverton, ORHC RHEUMATOID FACTOR (RF) $3.25 file