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Free T3 Blood Test

Washington rates for HCPCS 84481

This blood test measures the amount of triiodothyronine, or T3, that is freely available in the blood to act on the body's tissues, rather than the portion bound to carrier proteins. It helps evaluate thyroid function, particularly when other thyroid tests suggest an overactive thyroid.

Rates data updated July 2026.

Facilitymedian $39 · 10th–90th $16$1320%10%10th90th$39Professionalmedian $15 · 10th–90th $11$250%20%10th90th$15$5.0$10.0$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
$15.85
Median
$56.23
Typical High
$138.04
Aetna
Setting
Professional
Modifier
Global
Typical Low
$11.48
Median
$15.14
Typical High
$26.92
Ambetter
Setting
Professional
Modifier
Global
Typical Low
$10.23
Median
$10.47
Typical High
$28.18
Asuris Northwest Health
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$21.38
Typical High
$46.77
Asuris Northwest Health
Setting
Professional
Modifier
Global
Typical Low
$12.59
Median
$15.14
Typical High
$17.38
Cigna
Setting
Facility
Modifier
Global
Typical Low
$17.78
Median
$36.31
Typical High
$54.95
Cigna
Setting
Professional
Modifier
Global
Typical Low
$10.47
Median
$18.20
Typical High
$26.30
Molina
Setting
Professional
Modifier
Global
Typical Low
$10.96
Median
$14.79
Typical High
$17.78
Pacific Source
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$16.98
Typical High
$33.88
Pacific Source
Setting
Professional
Modifier
Global
Typical Low
$16.98
Median
$16.98
Typical High
$20.42
Premera BCBS
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$26.92
Typical High
$46.77
Premera BCBS
Setting
Professional
Modifier
Global
Typical Low
$15.14
Median
$15.14
Typical High
$20.42
Regence BlueShield
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$25.70
Typical High
$45.71
Regence BlueShield
Setting
Professional
Modifier
Global
Typical Low
$12.59
Median
$15.14
Typical High
$16.98
United
Setting
Facility
Modifier
Global
Typical Low
$16.22
Median
$20.42
Typical High
$20.42
United
Setting
Professional
Modifier
Global
Typical Low
$7.08
Median
$8.51
Typical High
$20.42
Wellpoint
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$8.71
Typical High
$30.20