Lab tests CPT 86431 Outpatient

Rheumatoid factor test cost in Lexington Park, MD

In Lexington Park, MD, 1 hospital lists a cash price for rheumatoid factor (RF) test: from $21.37 to $21.37, with a median of $21.37. Across Maryland, the median is $28.74 at 13 hospitals.

Cash prices at 1 facility for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$21.37MedStar St. Mary's Hospital
Median$21.37half pay less
Highest$21.37in 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 Lexington Park, MD.

median
Lowest $21.37Highest $21.37

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
MedStar St. Mary's Hospital lowest Leonardtown, MD · (301) 475-6001 RHEUMATOID FACTOR QUANT $21.37 $21.81 $21.37–$21.81 2% Apr 1, 2026
source file
MedStar St. Mary's Hospital lowest Leonardtown, MD · (301) 475-6001 RHEUMATOID FACTOR QNT $21.37 $21.81 $21.37–$21.81 2% Apr 1, 2026
source file

Outpatient: lowest $21.37, median $21.37, highest $21.37.

Cash or insurance?

At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.

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.