Rheumatoid factor test cost in Hartford, CT
In Hartford, CT, 4 hospitals list a cash price for rheumatoid factor (RF) test: from $14.10 to $47.25, with a median of $33.00. The lowest listed price is at Connecticut Children's — $18.90 less than the median here. Across Connecticut, the median is $38.53 at 16 hospitals.
Cash prices at 4 facilities for code 86431, as an outpatient — the setting a self-pay patient normally buys. 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 Hartford, CT.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Connecticut Children's lowest Hartford, CT · (860) 545-9000 RHEUMATOID FACTOR (RF) IgM | $14.10 | $23.50 | $6.80–$20.30 | 40% | — source file |
| Connecticut Children's lowest Hartford, CT · (860) 545-9000 RHEUMATOID FACTOR (RF) IgA | $14.10 | $23.50 | $6.80–$20.30 | 40% | — source file |
| Connecticut Children's lowest Hartford, CT · (860) 545-9000 RHEUMATOID FACTOR (RF) IgA | $14.10 | $23.50 | $6.80–$20.30 | 40% | — source file |
| Connecticut Children's lowest Hartford, CT · (860) 545-9000 RHEUMATOID FACTOR (RF) IgM | $14.10 | $23.50 | $6.80–$20.30 | 40% | — source file |
| Saint Francis Hospital and Medical Center Hartford, CT · (860) 714-5541 HC Rheumatoid Factor Quantitative | $33.00 | $60.00 | $5.03–$51.00 | 45% | Mar 31, 2026 source file |
| Mount Sinai Rehabilitation Hospital Hartford, CT HC Rheumatoid Factor Quantitative | $33.00 | $60.00 | $5.56–$53.92 | 45% | Mar 31, 2026 source file |
| Hartford Hospital Hartford, CT · (860) 545-5000 HC RHEUMATOID FACTOR QUANTITATIVE - IGA | $47.25 | $47.25 | $5.67 | — | — source file |
| Hartford Hospital Hartford, CT · (860) 545-5000 HC RHEUMATOID FACTOR QUANTITATIVE - IGM | $47.25 | $47.25 | $5.67 | — | — source file |
| Hartford Hospital Hartford, CT · (860) 545-5000 HC RHEUMATOID FACTOR QUANTITATIVE | $47.25 | $47.25 | $5.67 | — | — source file |
Outpatient: lowest $14.10, median $33.00, highest $47.25 — a 3.4× difference within the same market.
As an inpatient, the same code is billed by 3 facilities here, median $33.00. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 3 of 4 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. 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.