Lab tests CPT 86431 Outpatient

Rheumatoid factor test cost in Allentown, PA

In Allentown-Bethlehem-Easton, PA-NJ, 1 hospital lists a cash price for rheumatoid factor (RF) test: from $6.52 to $6.52, with a median of $6.52. Across Pennsylvania, the median is $39.20 at 64 hospitals.

Cash prices at 1 facility 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 — and —.

Lowest$6.52Hackettstown Medical Center
Median$6.52half pay less
Highest$6.52in 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 Allentown-Bethlehem-Easton, PA-NJ.

median
Lowest $6.52Highest $177.54

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Hackettstown Medical Center lowest Hackettstown, NJ · (908) 852-5100 Rheumatoid Factor Quant $6.52 $61.00 — 89% —
source file
Hackettstown Medical Center Hackettstown, NJ · (908) 852-5100 Rheumatoid Factor Quant $177.54 $4,660.00 — 96% —
source file

Outpatient: lowest $6.52, median $6.52, highest $6.52.

As an inpatient, the same code is billed by 1 facility here, median $6.52. 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.