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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 October 2026.

How much does Serotonin Blood Test cost?

$23.99

Typical negotiated rate. In Illinois, October 2026.

Insurers have agreed to pay about $23.99 for this service. The price depends on where it is billed: about $23.99 from a physician practice, and about $60.26 from a hospital or other facility.

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 6 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$23.99$16.98 to $25.12
FacilityA hospital or hospital-owned outpatient department$60.26$41.69 to $105

How much rates vary

Facilitymedian $60 · 10th to 90th $32 to $191Professionalmedian $24 · 10th to 90th $3 to $44
$5$10$20$50$100$200$500facility $60professional $24

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

Rates by insurance carrier

Insurance Carrier
Aetna
Setting
Facility
Modifier
None
Typical Low
$25.70
Median
$45.71
Typical High
$93.33
Aetna
Setting
Professional
Modifier
None
Typical Low
$23.44
Median
$25.12
Typical High
$37.15
BCBS Illinois
Setting
Facility
Modifier
None
Typical Low
$37.15
Median
$53.70
Typical High
$389.05
BCBS Illinois
Setting
Professional
Modifier
None
Typical Low
$3.47
Median
$23.99
Typical High
$23.99
Cigna
Setting
Facility
Modifier
None
Typical Low
$34.67
Median
$72.44
Typical High
$128.82
Cigna
Setting
Professional
Modifier
None
Typical Low
$16.22
Median
$36.31
Typical High
$54.95
Hally Health
Setting
Professional
Modifier
None
Typical Low
$30.90
Median
$50.12
Typical High
$177.83
Hally Health
Setting
Facility
Modifier
None
Typical Low
$100.00
Median
$100.00
Typical High
$100.00
Hally Health
Setting
Professional
Modifier
None
Typical Low
$39.81
Median
$39.81
Typical High
$39.81
Molina
Setting
Professional
Modifier
None
Typical Low
$16.98
Median
$21.88
Typical High
$38.90
United
Setting
Facility
Modifier
None
Typical Low
$30.90
Median
$37.15
Typical High
$79.43
United
Setting
Professional
Modifier
None
Typical Low
$4.90
Median
$19.95
Typical High
$33.88
4 more rates with less common billing modifiers

A modifier changes what was billed, for example a reduced or repeated service. Each of these modifiers carries under 10% of the published rates for this code. Modifier combinations, and modifiers with fewer than 30 rates for a carrier, are not listed.

Insurance Carrier
Aetna
Setting
Facility
Modifier
52 · Reduced service
Typical Low
$12.59
Median
$22.39
Typical High
$46.77
Aetna
Setting
Facility
Modifier
53 · Discontinued
Typical Low
$5.13
Median
$8.91
Typical High
$18.62
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$12.59
Median
$12.59
Typical High
$15.49
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$5.13
Median
$5.13
Typical High
$6.17

Where Illinois sits

The same service costs 4.2 times more in Kansas than in Alabama. 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· 47th of 51

$23.99

KS $77.62AL $18.62

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.