Rheumatoid factor test cost in Boulder, CO — inpatient
In Boulder, CO, 1 hospital lists a cash price for rheumatoid factor (RF) test as an inpatient: from $90.95 to $90.95, with a median of $90.95. Across Colorado, the median is $26.20 at 15 hospitals.
Cash prices at 1 facility 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.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Boulder, CO.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC RHEUMATOID FACTOR - RHEUMATOID ARTHRITIS PANEL - ARUP | $90.95 | $90.95 | — | — | Apr 1, 2026 source file |
| AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC RHEUMATOID FACTOR, QUANT - RHEUMATOID FACTOR | $90.95 | $90.95 | — | — | Apr 1, 2026 source file |
| AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC RHEUMATOID FACTOR, QUANT - RHEUMATOID FACTOR, BODY FLUID | $90.95 | $90.95 | — | — | Apr 1, 2026 source file |
| AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC RHEUMATOID FACTOR, QUANT - LUPUS COMPREHENSIVE REFLEXIVE PANEL - ARUP | $90.95 | $90.95 | — | — | Apr 1, 2026 source file |
| AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC RHEUMATOID FACTOR | $90.95 | $90.95 | — | — | Apr 1, 2026 source file |
| AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC RHEUMATOID FACTOR - QWDL | $90.95 | $90.95 | — | — | Apr 1, 2026 source file |
| AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC RHEUMATOID FACTOR - ARUP | $90.95 | $90.95 | — | — | Apr 1, 2026 source file |
| AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC RHEUMATOID FACTOR TITER REFLEX | $90.95 | $90.95 | — | — | Apr 1, 2026 source file |
| AdventHealth Avista lowest Louisville, CO · (303) 673-1000 HC RHEUMATOID FACTOR - LUPUS COMPREHENSIVE REFLEX PANEL - ARUP | $90.95 | $90.95 | — | — | Apr 1, 2026 source file |
Inpatient: lowest $90.95, median $90.95, highest $90.95.
As an outpatient, the same code is billed by 1 facility here, median $90.95 — 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.