Rheumatoid factor test cost in Santa Cruz, CA — inpatient
In Santa Cruz-Watsonville, CA, 1 hospital lists a cash price for rheumatoid factor (RF) test as an inpatient: from $79.00 to $79.00, with a median of $79.00. Across California, the median is $13.10 at 184 hospitals.
Cash prices at 1 facility for code 86431, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Sutter Maternity & Surgery Center of Santa Cruz Santa Cruz, CA · (831) 477-2200 HCHG CORE RHEUMATOID FCTR QN | $79.00 | $79.00 | — | — | Apr 1, 2026 source file |
Inpatient: lowest $79.00, median $79.00, highest $79.00.
As an outpatient, the same code is billed by 1 facility here, median $79.00 — 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 ($42.90). 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.
| Dominican Hospital Santa Cruz, CARL-A-RA 50465 | $3.15 | file |