Rheumatoid factor test cost in Detroit, MI
In Detroit-Warren-Dearborn, MI, 25 hospitals list a cash price for rheumatoid factor (RF) test: from $6.72 to $87.75, with a median of $22.50. The lowest listed price is at Henry Ford Health and 1 other hospital — $15.78 less than the median here. Across Michigan, the median is $35.28 at 58 hospitals.
Cash prices at 25 facilities across 18 cities for code 86431, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Dec 31, 2025 and Sep 2, 2026.
Lowest$6.72Henry Ford Health + 1 more
Median$22.50half pay less
Highest$87.75in this market
Difference13.1×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 Detroit-Warren-Dearborn, MI.
median
Lowest $6.72Highest $87.75
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Henry Ford Health lowest Detroit, MI · (313) 343-4000 RF, IGG BY EIA (RDL)-LC | $6.72 | $12.00 | $4.62–$11.80 | 44% | — source file |
| Henry Ford Health lowest East China Township, MI · (810) 329-7111 RF, IGG BY EIA (RDL)-LC | $6.72 | $12.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health lowest East China Township, MI · (810) 329-7111 RF, IGG BY EIA (RDL)-LC | $6.72 | $12.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health lowest East China Township, MI · (810) 329-7111 RHEUMATOID FACTOR -LC | $6.72 | $12.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health lowest East China Township, MI · (810) 329-7111 RHEUMATOID FACTOR -LC | $6.72 | $12.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health lowest Detroit, MI · (313) 343-4000 RF, IGG BY EIA (RDL)-LC | $6.72 | $12.00 | $4.62–$11.80 | 44% | — source file |
| Henry Ford Health lowest Detroit, MI · (313) 343-4000 RHEUMATOID FACTOR -LC | $6.72 | $12.00 | $4.62–$11.80 | 44% | — source file |
| Henry Ford Health lowest Detroit, MI · (313) 343-4000 RHEUMATOID FACTOR -LC | $6.72 | $12.00 | $4.62–$11.80 | 44% | — source file |
| Henry Ford Health Warren, MI · (586) 573-5000 RHEUMATOID FACTOR -LC | $7.28 | $13.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health Warren, MI · (586) 573-5000 RHEUMATOID FACTOR -LC | $7.28 | $13.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health Warren, MI · (586) 573-5000 RF, IGG BY EIA (RDL)-LC | $7.28 | $13.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health Warren, MI · (586) 573-5000 RF, IGG BY EIA (RDL)-LC | $7.28 | $13.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health West Bloomfield Hospital West Bloomfield, MI · (248) 325-1000 HB LAB RHEUMATOID FACTOR QN | $7.82 | $38.00 | $2.97–$19.92 | 79% | Jun 28, 2026 source file |
| Henry Ford Health West Bloomfield Hospital West Bloomfield, MI · (248) 325-1000 HB LAB RHEUMATOID FACTOR QUANTITATIVE, SO | $7.82 | $14.00 | $2.97–$16.91 | 44% | Jun 28, 2026 source file |
| Henry Ford Health West Bloomfield Hospital West Bloomfield, MI · (248) 325-1000 HB LAB RHEUMATOID FACTOR BFLD, SO | $7.82 | $13.55 | $2.97–$16.91 | 42% | Jun 28, 2026 source file |
| Henry Ford Wyandotte Hospital Wyandotte, MI HB LAB RHEUMATOID FACTOR QN | $7.82 | $38.00 | $4.63–$7.82 | 79% | Jun 28, 2026 source file |
| Henry Ford Wyandotte Hospital Wyandotte, MI HB LAB RHEUMATOID FACTOR QUANTITATIVE, SO | $7.82 | $14.00 | $2.97–$16.91 | 44% | Jun 28, 2026 source file |
| Henry Ford Wyandotte Hospital Wyandotte, MI HB LAB RHEUMATOID FACTOR BFLD, SO | $7.82 | $13.55 | $2.97–$16.91 | 42% | Jun 28, 2026 source file |
| Henry Ford Macomb Hospital Clinton Twp, MI · (586) 263-2300 HB LAB RHEUMATOID FACTOR QN | $7.82 | $38.00 | $2.97–$29.64 | 79% | Jun 28, 2026 source file |
| Henry Ford Macomb Hospital Clinton Twp, MI · (586) 263-2300 HB LAB RHEUMATOID FACTOR QUANTITATIVE, SO | $7.82 | $14.00 | $2.97–$14.00 | 44% | Jun 28, 2026 source file |
| Henry Ford Macomb Hospital Clinton Twp, MI · (586) 263-2300 HB LAB RHEUMATOID FACTOR BFLD, SO | $7.82 | $13.55 | $2.97–$13.55 | 42% | Jun 28, 2026 source file |
| Henry Ford Health Hospital Detroit, MI · (313) 916-2600 HB LAB RHEUMATOID FACTOR QN | $7.82 | $38.00 | $2.97–$19.92 | 79% | Jun 28, 2026 source file |
| Henry Ford Health Hospital Detroit, MI · (313) 916-2600 HB LAB RHEUMATOID FACTOR QUANTITATIVE, SO | $7.82 | $14.00 | $4.63–$7.82 | 44% | Jun 28, 2026 source file |
| Henry Ford Health Hospital Detroit, MI · (313) 916-2600 HB LAB RHEUMATOID FACTOR BFLD, SO | $7.82 | $13.55 | $2.97–$16.91 | 42% | Jun 28, 2026 source file |
| Karmanos Cancer Center Detroit, MI · (800) 576-6266 RHEUMTD FACTOR QUANT | $11.30 | $22.60 | $3.10–$16.95 | 50% | Dec 31, 2025 source file |
| Karmanos Cancer Center Detroit, MI · (800) 576-6266 RHEUMATOID FCT QNT (SOA) | $11.78 | $23.55 | $3.10–$17.66 | 50% | Dec 31, 2025 source file |
| Henry Ford Health Southfield, MI · (248) 849-3000 RHEUMATOID FACTOR;QUANTITATIVE | $14.56 | $26.00 | $4.13–$10.21 | 44% | — source file |
| Henry Ford Health Novi, MI RHEUMATOID FACTOR;QUANTITATIVE | $14.56 | $26.00 | $3.83–$10.21 | 44% | — source file |
| Henry Ford Health Southfield, MI · (248) 849-3000 RHEUMATOID FACTOR;QUANTITATIVE | $14.56 | $26.00 | $4.13–$10.21 | 44% | — source file |
| Henry Ford Health Novi, MI RHEUMATOID FACTOR;QUANTITATIVE | $14.56 | $26.00 | $3.83–$10.21 | 44% | — source file |
| Henry Ford Health East China Township, MI · (810) 329-7111 RHEUMATOID FACTOR;QUANTITATIVE | $15.36 | $27.42 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health East China Township, MI · (810) 329-7111 RHEUMATOID FACTOR;QUANTITATIVE | $15.36 | $27.42 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health Warren, MI · (586) 573-5000 RHEUMATOID FACTOR;QUANTITATIVE | $16.80 | $30.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health Warren, MI · (586) 573-5000 RHEUMATOID FACTOR;QUANTITATIVE | $16.80 | $30.00 | $7.74–$11.80 | 44% | — source file |
| Karmanos Cancer Center Detroit, MI · (800) 576-6266 LATEX FIXATION,RA FACTOR, | $21.35 | $42.70 | $3.10–$32.03 | 50% | Dec 31, 2025 source file |
| VHS Childrens Hospital of Michigan Detroit, MI · (313) 745-5437 RHEUMATOID FACTOR, QUANT | $21.75 | $29.00 | — | 25% | Apr 6, 2026 source file |
| McLaren Lapeer Region Lapeer, MI · (810) 667-5500 Rheumatoid Arthritis Factor Quant | $22.00 | $44.00 | $3.10–$23.06 | 50% | Dec 31, 2025 source file |
| McLaren Oakland Pontiac, MI · (248) 338-5000 Rheumatoid Arthritis Factor Quant | $22.50 | $45.00 | $3.10–$34.75 | 50% | Dec 31, 2025 source file |
| McLaren Macomb Mount Clemens, MI · (586) 493-8000 Rheumatoid Arthritis Factor Quant | $24.65 | $49.30 | $3.10–$30.44 | 50% | Dec 31, 2025 source file |
| Karmanos Cancer Center Detroit, MI · (800) 576-6266 RHEUMATOID FACTOR QUANT | $28.95 | $57.90 | $3.10–$43.43 | 50% | Dec 31, 2025 source file |
| McLaren Port Huron Port Huron, MI · (810) 987-5000 RHEUMATOID FACTOR QUANT | $37.90 | $75.80 | $3.10–$38.51 | 50% | Dec 31, 2025 source file |
| McLaren Port Huron Port Huron, MI · (810) 987-5000 Rheumatoid Arthritis Factor Quant | $39.25 | $78.50 | $3.10–$58.88 | 50% | Dec 31, 2025 source file |
| VHS Sinai Grace Hospital Detroit, MI · (313) 966-3300 RHEUMATOID FACTOR QUANT | $54.75 | $73.00 | — | 25% | Apr 8, 2026 source file |
| Beaumont Hospital - Taylor Taylor, MI · (313) 295-5000 Hc Rheumatoid Factor Quant | $57.00 | $57.00 | — | — | — source file |
| William Beaumont Hospital Grosse Pointe, MI · (313) 473-1000 Hc Rheumatoid Factor Quant | $57.00 | $57.00 | — | — | — source file |
| Corewell Health Wayne Hospital Wayne, MI · (734) 467-4175 Hc Rheumatoid Factor Quant | $57.00 | $57.00 | — | — | — source file |
| Corewell Health Trenton Hospital Trenton, MI · (734) 671-3800 Hc Rheumatoid Factor Quant | $57.00 | $57.00 | — | — | — source file |
| William Beaumont Hospital Troy, MI · (248) 964-8800 Hc Rheumatoid Factor Quant | $57.00 | $57.00 | — | — | — source file |
| VHS Rehabilitation Institute of Michigan Detroit, MI RHEUMATOID FACTOR QUANT | $63.75 | $85.00 | — | 25% | Apr 8, 2026 source file |
| Henry Ford Health Detroit, MI · (313) 343-4000 RHEUMATOID FACTOR QUANTITATIVE | $68.32 | $122.00 | $4.62–$11.80 | 44% | — source file |
| Henry Ford Health Detroit, MI · (313) 343-4000 RHEUMATOID FACTOR QUANTITATIVE | $68.32 | $122.00 | $4.62–$11.80 | 44% | — source file |
| Henry Ford Health East China Township, MI · (810) 329-7111 RHEUMATOID FACTOR QUANTITATIVE | $68.50 | $122.32 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health East China Township, MI · (810) 329-7111 RHEUMATOID FACTOR QUANTITATIVE | $68.50 | $122.32 | $7.74–$11.80 | 44% | — source file |
| VHS Childrens Hospital of Michigan Detroit, MI · (313) 745-5437 RHEUMATOID FACTOR QUANT | $73.50 | $98.00 | — | 25% | Apr 6, 2026 source file |
| Henry Ford Health Warren, MI · (586) 573-5000 RHEUMATOID FACTOR QUANTITATIVE | $74.48 | $133.00 | $7.74–$11.80 | 44% | — source file |
| Henry Ford Health Warren, MI · (586) 573-5000 RHEUMATOID FACTOR QUANTITATIVE | $74.48 | $133.00 | $7.74–$11.80 | 44% | — source file |
| Harper University Hospital Detroit, MI · (313) 745-6211 RHEUMATOID FACTOR QUANT | $85.50 | $114.00 | $1.00–$7.74 | 25% | Sep 2, 2026 source file |
| Harper University Hospital Detroit, MI · (313) 745-6211 RHEUMATOID FACTOR QUANT | $85.50 | $114.00 | $1.00–$7.74 | 25% | Aug 20, 2026 source file |
| VHS Childrens Hospital of Michigan Detroit, MI · (313) 745-5437 LATEX FIXATION,RA FACTOR,QTY. | $86.25 | $115.00 | — | 25% | Apr 6, 2026 source file |
| VHS Huron Valley-Sinai Hospital Commerce Charter Twp, MI · (248) 937-3370 RHEUMATOID FACTOR QUANT | $87.00 | $116.00 | $1.00–$7.74 | 25% | May 20, 2026 source file |
| VHS Detroit Receiving Hospital Detroit, MI · (313) 745-2941 RHEUMATOID FACTOR QUANT | $87.75 | $117.00 | — | 25% | Apr 7, 2026 source file |
Outpatient: lowest $6.72, median $22.50, highest $87.75 — a 13.1× difference within the same market.
As an inpatient, the same code is billed by 14 facilities here, median $57.00. 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 11 of 16 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 2 it is 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.
2 rows held back from this comparison
They are priced below $1 or below a tenth of the national median for code 86431 ($38.28). 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.
| Henry Ford Health Novi, MIREF-RA FACTOR QUANT SYNOVIAL | $3.36 | file |
| Henry Ford Health Southfield, MIREF-RA FACTOR QUANT SYNOVIAL | $3.36 | file |