Lab tests CPT 86431 Outpatient

Rheumatoid factor test cost in Shreveport, LA

In Shreveport-Bossier City, LA, 1 hospital lists a cash price for rheumatoid factor (RF) test: from $13.61 to $13.61, with a median of $13.61. Across Louisiana, the median is $27.01 at 28 hospitals.

Cash prices at 1 facility for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 28, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$13.61Willis Knighton Medical Center
Median$13.61half pay less
Highest$13.61in 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 Shreveport-Bossier City, LA.

median
Lowest $13.61Highest $104.00

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Willis Knighton Medical Center lowest Shreveport, LA · (318) 212-4000 Rheumatoid Factor Qnt Bf-Ar $13.61 $17.01 — 20% Apr 1, 2026
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Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 Lupus Rheumatoid Factorp-Ar $23.71 $29.64 — 20% Apr 1, 2026
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Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 Rheumatoid Factor Quantitative $27.46 $34.33 — 20% Apr 1, 2026
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Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 Rheum Arth Fact Quantp-Q $65.00 $81.25 — 20% Apr 1, 2026
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Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 Rheumatiod Factor Panel Qt-M $104.00 $130.00 — 20% Apr 1, 2026
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Outpatient: lowest $13.61, median $13.61, highest $13.61.

As an inpatient, the same code is billed by 1 facility here, median $13.61. 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.