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Thyroxine Binding Globulin Blood Test

Colorado 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?

$14.13

Typical negotiated rate. In Colorado, July 2026.

Insurers have agreed to pay about $14.13 for this service. The price depends on where it is billed: about $11.48 from a physician practice, and about $39.81 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 7 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$11.48$10.96 to $13.18
FacilityA hospital or hospital-owned outpatient department$39.81$19.50 to $60.26

How much rates vary

Facilitymedian $40 · 10th to 90th $11 to $71Professionalmedian $11 · 10th to 90th $6 to $14
$10$20$50$100facility $40professional $11

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
$9.33
Median
$32.36
Typical High
$67.61
Aetna
Setting
Professional
Modifier
Global
Typical Low
$11.22
Median
$11.48
Typical High
$14.13
Anthem BCBS
Setting
Facility
Modifier
Global
Typical Low
$18.62
Median
$43.65
Typical High
$74.13
Anthem BCBS
Setting
Professional
Modifier
Global
Typical Low
$6.17
Median
$6.17
Typical High
$11.22
Cigna
Setting
Facility
Modifier
Global
Typical Low
$8.51
Median
$10.47
Typical High
$38.90
Cigna
Setting
Professional
Modifier
Global
Typical Low
$7.76
Median
$9.55
Typical High
$17.78
Denver HMP
Setting
Facility
Modifier
Global
Typical Low
$11.22
Median
$16.22
Typical High
$30.90
Kaiser Permanente
Setting
Professional
Modifier
Global
Typical Low
$20.89
Median
$144.54
Typical High
$144.54
Select Health
Setting
Facility
Modifier
Global
Typical Low
$15.49
Median
$27.54
Typical High
$30.90
Select Health
Setting
Professional
Modifier
Global
Typical Low
$10.23
Median
$10.23
Typical High
$14.79
United
Setting
Facility
Modifier
Global
Typical Low
$11.22
Median
$14.79
Typical High
$22.39
United
Setting
Professional
Modifier
Global
Typical Low
$6.17
Median
$8.71
Typical High
$14.79

Where Colorado 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.

Colorado· 39th of 51

$14.13

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.