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Serotonin Blood Test

Washington, DC 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.

Facilitymedian $191 · 10th–90th $23$4370%20%10th90th$191Professionalmedian $23 · 10th–90th $23$1070%50%90th$23$20.0$50.0$100.0$200.0$500.0

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
$23.44
Median
$213.80
Typical High
$436.52
Aetna
Setting
Professional
Modifier
Global
Typical Low
$23.44
Median
$23.44
Typical High
$23.44
CareFirst
Setting
Professional
Modifier
Global
Typical Low
$89.13
Median
$154.88
Typical High
$346.74
Cigna
Setting
Facility
Modifier
Global
Typical Low
$50.12
Median
$52.48
Typical High
$117.49
Cigna
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$35.48
Typical High
$245.47
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$60.26
Median
$60.26
Typical High
$63.10
United
Setting
Facility
Modifier
Global
Typical Low
$18.20
Median
$37.15
Typical High
$95.50
United
Setting
Professional
Modifier
Global
Typical Low
$12.88
Median
$19.50
Typical High
$52.48