Lab tests CPT 86431 Outpatient

Rheumatoid factor test cost in Saint Ignace, MI

In Saint Ignace, MI, 1 hospital lists a cash price for rheumatoid factor (RF) test: from $5.57 to $5.57, with a median of $5.57. Across Michigan, the median is $33.15 at 85 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 Jul 22, 2026 and Jul 22, 2026.

Lowest$5.57Mackinac Straits Hospital and Health Center
Median$5.57half of hospitals charge less
Highest$5.57in this market
Difference1.0×highest vs lowest

Hospitals, cheapest first

HospitalCash priceList priceInsurers payOff list
Mackinac Straits Hospital and Health Center Saint Ignace, MI · (906) 643-8585 Rheumatoid factor level File of Jul 22, 2026 · source file $5.57 $9.28 $7.42–$8.67 40%
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.

Outpatient: lowest $5.57, median $5.57, highest $5.57.

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 and below every plan's rate. 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.