Lab tests CPT 86431 Outpatient

Rheumatoid factor test cost in Dover, DE

In Dover, DE, 1 hospital lists a cash price for rheumatoid factor (RF) test: from $36.96 to $36.96, with a median of $36.96. Across Delaware, the median is $54.98 at 6 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 Apr 1, 2026 and Apr 1, 2026.

Lowest$36.96Bayhealth Medical Center, Kent Campus
Median$36.96half pay less
Highest$36.96in 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 Dover, DE.

median
Lowest $36.96Highest $36.96

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Bayhealth Medical Center, Kent Campus lowest Dover, DE · (302) 744-7001 Hc Rheumatoid Factor Quant $36.96 $44.00 — 16% Apr 1, 2026
source file
Bayhealth Medical Center, Kent Campus lowest Dover, DE · (302) 744-7001 Hc Rheumatoid Factor Test Quant $36.96 $44.00 — 16% Apr 1, 2026
source file

Outpatient: lowest $36.96, median $36.96, highest $36.96.

As an inpatient, the same code is billed by 1 facility here, median $36.96. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

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.