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Serotonin Blood Test

Illinois rates for HCPCS 84260

This blood test measures the level of serotonin, a chemical messenger involved in mood, digestion, and blood vessel function. Elevated levels can be a sign of certain rare hormone-producing tumors, so this test is often used alongside other studies when a doctor suspects one of these tumors. It's typically ordered together with a related urine test that looks for a breakdown product of serotonin.

Rates data updated July 2026.

How much does Serotonin Blood Test cost?

$30.90

Typical negotiated rate. In Illinois, July 2026.

Insurers have agreed to pay about $30.90 for this service. The price depends on where it is billed: about $23.99 from a physician practice, and about $47.86 from a hospital or other facility. The two figures are alternatives, not parts of one bill.

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 7 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$23.99$19.05 to $30.90
FacilityA hospital or hospital-owned outpatient department$47.86$31.62 to $63.10

How much rates vary

Facilitymedian $48 · 10th to 90th $27 to $85Professionalmedian $24 · 10th to 90th $3 to $63
$5$10$20$50$100$200facility $48professional $24

Distribution of negotiated rates across all payers (price axis is log-scale). Each curve is scaled to its own total: facility and professional rates are different services, shown together to compare where they cluster. Need provider-level prices or 24+ months of history? Contact us.

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
Global
Typical Low
$26.92
Median
$47.86
Typical High
$70.79
Aetna
Setting
Professional
Modifier
Global
Typical Low
$20.42
Median
$26.92
Typical High
$63.10
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$18.62
Median
$18.62
Typical High
$18.62
BCBS
Setting
Facility
Modifier
Global
Typical Low
$38.90
Median
$125.89
Typical High
$389.05
BCBS
Setting
Professional
Modifier
Global
Typical Low
$3.47
Median
$21.38
Typical High
$23.99
Cigna
Setting
Facility
Modifier
Global
Typical Low
$34.67
Median
$70.79
Typical High
$144.54
Cigna
Setting
Professional
Modifier
Global
Typical Low
$16.22
Median
$35.48
Typical High
$56.23
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$30.90
Median
$61.66
Typical High
$218.78
Hally Health
Setting
Facility
Modifier
Global
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
Global
Typical Low
$39.81
Median
$39.81
Typical High
$39.81
Molina
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$16.98
Typical High
$21.88
United
Setting
Facility
Modifier
Global
Typical Low
$22.91
Median
$30.90
Typical High
$61.66
United
Setting
Professional
Modifier
Global
Typical Low
$4.47
Median
$18.62
Typical High
$33.88

Where Illinois sits

The same service costs 2.5 times more in Nebraska 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.

Illinois· 37th of 51

$30.90

NE $58.88MD $23.44

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.