Lab tests CPT 86431 Outpatient

Rheumatoid factor test cost in Carlsbad, NM

In Carlsbad-Artesia, NM, 1 hospital lists a cash price for rheumatoid factor (RF) test: from $149.40 to $149.40, with a median of $149.40. Across New Mexico, the median is $61.72 at 9 hospitals.

Cash prices at 1 facility for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 20, 2026 and Feb 20, 2026.

Lowest$149.40Artesia General Hospital
Median$149.40half pay less
Highest$149.40in this market
Difference1.0×highest vs lowest

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Artesia General Hospital Artesia, NM · (575) 748-3333 rheumatoid factor quant REF 006502 $149.40 $249.00 $4.82–$236.55 40% Feb 20, 2026
source file

Outpatient: lowest $149.40, median $149.40, highest $149.40.

As an inpatient, the same code is billed by 2 facilities here, median $77.12. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

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.

2 rows held back from this comparison

They are priced below $1 or below a tenth of the national median for code 86431 ($41.60). 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.

Carlsbad Medical Center Carlsbad, NMQ37491 RHEUMATOID FA $2.42 file
Carlsbad Medical Center Carlsbad, NMRHEUMATOID FACT QUAN $3.10 file