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Thyroxine Binding Globulin Blood Test

Kentucky 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?

$12.02

Typical negotiated rate. In Kentucky, July 2026.

Insurers have agreed to pay about $12.02 for this service. The price depends on where it is billed: about $11.75 from a physician practice, and about $15.49 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$11.75$7.24 to $13.49
FacilityA hospital or hospital-owned outpatient department$15.49$12.02 to $26.92

How much rates vary

Facilitymedian $15 · 10th to 90th $12 to $65Professionalmedian $12 · 10th to 90th $7 to $21
$10$20$50$100$200facility $15professional $12

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
$12.02
Median
$15.85
Typical High
$104.71
Aetna
Setting
Professional
Modifier
Global
Typical Low
$11.75
Median
$12.02
Typical High
$66.07
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$12.59
Median
$14.79
Typical High
$15.49
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$7.24
Median
$7.24
Typical High
$20.42
CareSource
Setting
Facility
Modifier
Global
Typical Low
$14.79
Median
$17.78
Typical High
$20.89
CareSource
Setting
Professional
Modifier
Global
Typical Low
$14.79
Median
$18.62
Typical High
$29.51
Cigna
Setting
Facility
Modifier
Global
Typical Low
$11.48
Median
$26.92
Typical High
$34.67
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.59
Median
$97.72
Typical High
$97.72
United
Setting
Facility
Modifier
Global
Typical Low
$6.61
Median
$14.79
Typical High
$51.29
United
Setting
Professional
Modifier
Global
Typical Low
$6.17
Median
$12.30
Typical High
$20.89

Where Kentucky 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.

Kentucky· 47th of 51

$12.02

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.