Lab tests CPT 86431 Inpatient — admitted to hospital

Rheumatoid factor test cost in Warsaw, IN — inpatient

In Warsaw, IN, 1 hospital lists a cash price for rheumatoid factor (RF) test as an inpatient: from $8.19 to $8.19, with a median of $8.19. Across Indiana, the median is $47.34 at 80 hospitals.

Cash prices at 1 facility for code 86431, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$8.19Kosciusko Community Hospital
Median$8.19half pay less
Highest$8.19in 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 Warsaw, IN.

median
Lowest $8.19Highest $85.02

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Kosciusko Community Hospital lowest Warsaw, IN · (574) 267-3200 86431 Rheumatoid Factor Quant $8.19 $21.00 $6.64–$19.74 61% Apr 1, 2026
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Kosciusko Community Hospital Warsaw, IN · (574) 267-3200 86431 Rheumatoid Fact Quant $76.83 $197.00 $62.25–$185.18 61% Apr 1, 2026
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Kosciusko Community Hospital Warsaw, IN · (574) 267-3200 Rheumatoid Factor, IgM by EIA (RDL) (LC) $76.83 $197.00 $62.25–$185.18 61% Apr 1, 2026
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Kosciusko Community Hospital Warsaw, IN · (574) 267-3200 Rheumatoid Factor Titer $76.83 $197.00 $62.25–$185.18 61% Apr 1, 2026
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Kosciusko Community Hospital Warsaw, IN · (574) 267-3200 Rheumatoid Arthritis Factor (RL) $76.83 $197.00 $62.25–$185.18 61% Apr 1, 2026
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Kosciusko Community Hospital Warsaw, IN · (574) 267-3200 86431 RHEUMATOID FACT QUAN $76.83 $197.00 $62.25–$185.18 61% Apr 1, 2026
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Kosciusko Community Hospital Warsaw, IN · (574) 267-3200 Rheumatoid Factor (RF), IgM LC $76.83 $197.00 $62.25–$185.18 61% Apr 1, 2026
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Kosciusko Community Hospital Warsaw, IN · (574) 267-3200 Rheumatoid Factor Quant Auto $76.83 $197.00 $62.25–$185.18 61% Apr 1, 2026
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Kosciusko Community Hospital Warsaw, IN · (574) 267-3200 86431 L520293 RA FACT QT $85.02 $218.00 $68.89–$204.92 61% Apr 1, 2026
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Inpatient: lowest $8.19, median $8.19, highest $8.19.

As an outpatient, the same code is billed by 1 facility here, median $4.41 — that is the price to compare if you are not being admitted.

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.

1 row held back from this comparison

It is priced below $1 or below a tenth of the national median for code 86431 ($41.89). 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.

Kosciusko Community Hospital Warsaw, IN86431 L164245 RA FACT QT 889 $2.75 file