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Thyroxine Binding Globulin Blood Test

Louisiana rates for HCPCS 84442

A blood test that measures the level of thyroxine binding globulin, a protein made by the liver that carries thyroid hormone through the bloodstream. It helps doctors interpret thyroid hormone levels correctly, since changes in this carrier protein — from pregnancy, liver disease, certain medications, or inherited conditions — can make total thyroid hormone results look abnormal even when thyroid function itself is normal. A small blood sample is all that's needed.

Rates data updated July 2026.

How much does Thyroxine Binding Globulin Blood Test cost?

$17.78

Typical negotiated rate. In Louisiana, July 2026.

Insurers have agreed to pay about $17.78 for this service. The price depends on where it is billed: about $16.22 from a physician practice, and about $20.42 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 5 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$16.22$11.22 to $18.20
FacilityA hospital or hospital-owned outpatient department$20.42$17.78 to $38.02

How much rates vary

Facilitymedian $20 · 10th to 90th $15 to $54Professionalmedian $16 · 10th to 90th $8 to $21
$5$10$20$50$100facility $20professional $16

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
$15.85
Median
$19.95
Typical High
$53.70
Aetna
Setting
Professional
Modifier
Global
Typical Low
$11.22
Median
$17.78
Typical High
$26.30
BCBS
Setting
Facility
Modifier
Global
Typical Low
$16.98
Median
$29.51
Typical High
$50.12
BCBS
Setting
Professional
Modifier
Global
Typical Low
$12.30
Median
$16.22
Typical High
$23.99
Christus
Setting
Facility
Modifier
Global
Typical Low
$3.39
Median
$3.39
Typical High
$39.81
Cigna
Setting
Facility
Modifier
Global
Typical Low
$16.22
Median
$41.69
Typical High
$91.20
Cigna
Setting
Professional
Modifier
Global
Typical Low
$6.92
Median
$9.77
Typical High
$16.98
United
Setting
Facility
Modifier
Global
Typical Low
$6.17
Median
$14.79
Typical High
$18.20
United
Setting
Professional
Modifier
Global
Typical Low
$6.17
Median
$7.76
Typical High
$20.89

Where Louisiana sits

The same service costs 2.6 times more in Nebraska than in Washington, DC. 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.

Louisiana· 18th of 51

$17.78

NE $28.18DC $10.96

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.