Rheumatoid Factor Blood Test, Quantitative

Delaware 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 October 2026.

How much does Rheumatoid Factor Blood Test, Quantitative cost?

$5.62

Typical negotiated rate. In Delaware, October 2026.

Insurers have agreed to pay about $5.62 for this service. The price depends on where it is billed: about $4.79 from a physician practice, and about $12.30 from a hospital or other facility.

Few insurers publish rates for this combination, so treat this figure as a rough guide.

These are rates insurers have negotiated with providers, not the amount a patient is billed. What you owe depends on your plan's deductible and coinsurance. Based on rates published by 4 insurance carriers under federal price transparency rules.

Prices by location type

Billed by	Who charges it	Typical	Range
Physician practiceA doctor's office, clinic or independent provider	A doctor's office, clinic or independent provider	$4.79	$3.80 to $7.94
FacilityA hospital or hospital-owned outpatient department	A hospital or hospital-owned outpatient department	$12.30	$4.68 to $15.14

How much rates vary

Facilitymedian $12 · 10th to 90th $5 to $28Professionalmedian $5 · 10th to 90th $3 to $11

Distribution of negotiated rates across all payers (price axis is log-scale). Small sample; interpret with caution. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier	Facility/Professional	Modifier	Typical Low	Median	Typical High
Aetna Setting Facility Modifier None Typical Low $4.68 Median $5.89 Typical High $15.14	Facility	None	$4.68	$5.89	$15.14
Aetna Setting Professional Modifier None Typical Low $4.47 Median $5.25 Typical High $8.32	Professional	None	$4.47	$5.25	$8.32
Cigna Setting Facility Modifier None Typical Low $3.72 Median $3.72 Typical High $13.49	Facility	None	$3.72	$3.72	$13.49
Cigna Setting Professional Modifier None Typical Low $3.47 Median $6.61 Typical High $38.02	Professional	None	$3.47	$6.61	$38.02
Highmark BCBS Setting Facility Modifier None Typical Low $5.62 Median $15.14 Typical High $38.02	Facility	None	$5.62	$15.14	$38.02
United Setting Professional Modifier None Typical Low $2.40 Median $3.39 Typical High $7.94	Professional	None	$2.40	$3.39	$7.94

Where Delaware sits

The same service costs 13.5 times more in Vermont than in Maryland. Every bar is a state, most expensive first. Touch or drag across it to read any state, then open that state for its carriers and full range.

Delaware· 30th of 51

$5.62

VT $57.54MD $4.27

Median negotiated rate in each state, from every insurer that publishes one. States where no insurer publishes a rate for this service are not shown.