Lab tests CPT 86431 Outpatient

Rheumatoid factor test cost in Berlin, WI

In Berlin, WI, 1 hospital lists a cash price for rheumatoid factor (RF) test: from $23.13 to $23.13, with a median of $23.13. Across Wisconsin, the median is $57.50 at 81 hospitals.

Cash prices at 1 facility for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between — and —.

Lowest$23.13ThedaCare Regional Medical Center-Berlin
Median$23.13half pay less
Highest$23.13in this market
Difference1.0×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 Berlin, WI.

median
Lowest $23.13Highest $23.13

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
ThedaCare Regional Medical Center-Berlin lowest Berlin, WI · (920) 361-1313 RA TITER $23.13 $41.30 — 44% —
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ThedaCare Regional Medical Center-Berlin lowest Berlin, WI · (920) 361-1313 RHEUMATOID FACTOR,SERUM $23.13 $41.30 — 44% —
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ThedaCare Regional Medical Center-Berlin lowest Berlin, WI · (920) 361-1313 RHEUMATOID FACTOR, BLOOD $23.13 $41.30 — 44% —
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ThedaCare Regional Medical Center-Berlin lowest Berlin, WI · (920) 361-1313 RHEUMATOID FACTOR; QUANTITATIVE $23.13 $41.30 — 44% —
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Outpatient: lowest $23.13, median $23.13, highest $23.13.

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.