Rheumatoid factor test cost in Fairfield, IL
In Fairfield, IL, 1 hospital lists a cash price for rheumatoid factor (RF) test: from $120.00 to $120.00, with a median of $120.00. Across Illinois, the median is $63.30 at 109 hospitals.
Cash prices at 1 facility for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Fairfield, IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Fairfield Memorial Hospital lowest Fairfield, IL · (618) 842-2611 RHEUMATOID ARTH BLD | $120.00 | $150.00 | $6.36–$405.00 | 20% | — source file |
| Fairfield Memorial Hospital Fairfield, IL · (618) 842-2611 RA QUAN | $287.20 | $359.00 | $6.36–$405.00 | 20% | — source file |
| Fairfield Memorial Hospital Fairfield, IL · (618) 842-2611 ISLET CELL ANTIBODY | $293.60 | $367.00 | $6.36–$405.00 | 20% | — source file |
| Fairfield Memorial Hospital Fairfield, IL · (618) 842-2611 VASCULITIS PROFILE (RDL) | $360.00 | $450.00 | $6.36–$405.00 | 20% | — source file |
Outpatient: lowest $120.00, median $120.00, highest $120.00.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is 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
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.