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Serotonin Blood Test

Tennessee 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?

$26.92

Typical negotiated rate. In Tennessee, October 2026.

Insurers have agreed to pay about $26.92 for this service. The price depends on where it is billed: about $23.99 from a physician practice, and about $57.54 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 5 insurance carriers under federal price transparency rules.

Prices by location type

Billed byTypicalRange
Physician practiceA doctor's office, clinic or independent provider$23.99$16.22 to $29.51
FacilityA hospital or hospital-owned outpatient department$57.54$30.90 to $69.18

How much rates vary

Facilitymedian $58 · 10th to 90th $23 to $112Professionalmedian $24 · 10th to 90th $14 to $39
$20$50$100facility $58professional $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
$23.44
Median
$24.55
Typical High
$47.86
Aetna
Setting
Professional
Modifier
None
Typical Low
$23.44
Median
$24.55
Typical High
$47.86
Aetna
Setting
Professional
Modifier
52 · Reduced service
Typical Low
$11.75
Median
$12.30
Typical High
$18.62
Aetna
Setting
Professional
Modifier
53 · Discontinued
Typical Low
$4.68
Median
$4.90
Typical High
$7.41
Ambetter
Setting
Professional
Modifier
None
Typical Low
$19.05
Median
$56.23
Typical High
$56.23
BCBS Tennessee
Setting
Professional
Modifier
None
Typical Low
$16.22
Median
$29.51
Typical High
$34.67
Cigna
Setting
Facility
Modifier
None
Typical Low
$22.91
Median
$63.10
Typical High
$123.03
Cigna
Setting
Professional
Modifier
None
Typical Low
$14.13
Median
$20.42
Typical High
$44.67
United
Setting
Facility
Modifier
None
Typical Low
$104.71
Median
$104.71
Typical High
$104.71
United
Setting
Professional
Modifier
None
Typical Low
$12.88
Median
$18.20
Typical High
$33.88

Where Tennessee 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.

Tennessee· 33rd of 51

$26.92

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.