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Rheumatoid Factor Blood Test, Quantitative

Massachusetts rates for HCPCS 86431

This blood test measures the exact amount of rheumatoid factor, an antibody that is often elevated in people with rheumatoid arthritis and some other autoimmune or chronic conditions. Reporting a specific amount, rather than just a positive or negative result, can help a doctor gauge disease activity over time.

Rates data updated July 2026.

Facilitymedian $16 · 10th–90th $6$760%10%10th90th$16Professionalmedian $5 · 10th–90th $4$110%50%10th90th$5$2.0$10.0$50.0$200.0$1.0K$5.0K$20.0K

Distribution of negotiated rates across all payers (price axis is log-scale). Facility and professional rates are different services and are charted separately. Need provider-level prices? Contact us.

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$7.76
Median
$26.30
Typical High
$79.43
Aetna
Setting
Professional
Modifier
Global
Typical Low
$4.27
Median
$5.13
Typical High
$6.76
AllWays Health Partners
Setting
Facility
Modifier
Global
Typical Low
$5.13
Median
$7.94
Typical High
$60.26
AllWays Health Partners
Setting
Professional
Modifier
Global
Typical Low
$3.39
Median
$5.62
Typical High
$13.80
BCBS
Setting
Facility
Modifier
Global
Typical Low
$10.96
Median
$13.49
Typical High
$21.88
BCBS
Setting
Professional
Modifier
Global
Typical Low
$5.37
Median
$5.37
Typical High
$7.24
Cigna
Setting
Facility
Modifier
Global
Typical Low
$4.47
Median
$8.91
Typical High
$14.79
Cigna
Setting
Professional
Modifier
Global
Typical Low
$3.39
Median
$6.61
Typical High
$14.45
Fallon Health
Setting
Facility
Modifier
Global
Typical Low
$6.46
Median
$37.15
Typical High
$7,079.46
Fallon Health
Setting
Professional
Modifier
Global
Typical Low
$8.32
Median
$8.32
Typical High
$10.00
Harvard Pilgrim
Setting
Professional
Modifier
Global
Typical Low
$5.62
Median
$5.62
Typical High
$17.38
Health New England
Setting
Facility
Modifier
Global
Typical Low
$6.92
Median
$7.76
Typical High
$79.43
Mass General Brigham
Setting
Facility
Modifier
Global
Typical Low
$5.13
Median
$7.94
Typical High
$60.26
Mass General Brigham
Setting
Professional
Modifier
Global
Typical Low
$3.39
Median
$5.62
Typical High
$13.80
Tufts
Setting
Facility
Modifier
Global
Typical Low
$5.01
Median
$6.46
Typical High
$13.18
Tufts
Setting
Professional
Modifier
Global
Typical Low
$5.01
Median
$5.89
Typical High
$9.12
United
Setting
Facility
Modifier
Global
Typical Low
$3.24
Median
$5.62
Typical High
$8.32
United
Setting
Professional
Modifier
Global
Typical Low
$3.39
Median
$5.25
Typical High
$14.45