Thyroxine Binding Globulin Blood Test

Delaware 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?

$12.30

Typical negotiated rate. In Delaware, July 2026.

Insurers have agreed to pay about $12.30 for this service. The price depends on where it is billed: about $12.30 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 4 insurance carriers under federal price transparency rules.

Where it's billed changes the price

Billed by	Who charges it	Typical	Range
Physician practiceA doctor's office, clinic or independent provider	A doctor's office, clinic or independent provider	$12.30	$11.75 to $44.67
FacilityA hospital or hospital-owned outpatient department	A hospital or hospital-owned outpatient department	$15.49	$12.30 to $16.98

How much rates vary

Facilitymedian $15 · 10th to 90th $12 to $17Professionalmedian $12 · 10th to 90th $12 to $45

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	Facility/Professional	Modifier	Typical Low	Median	Typical High
Aetna Setting Facility Modifier Global Typical Low $12.30 Median $15.49 Typical High $16.98	Facility	Global	$12.30	$15.49	$16.98
Aetna Setting Professional Modifier Global Typical Low $11.75 Median $12.30 Typical High $44.67	Professional	Global	$11.75	$12.30	$44.67
Cigna Setting Facility Modifier Global Typical Low $9.55 Median $9.55 Typical High $9.55	Facility	Global	$9.55	$9.55	$9.55
Cigna Setting Professional Modifier Global Typical Low $9.12 Median $10.72 Typical High $27.54	Professional	Global	$9.12	$10.72	$27.54
Highmark BCBS Setting Facility Modifier Global Typical Low $14.79 Median $14.79 Typical High $37.15	Facility	Global	$14.79	$14.79	$37.15
United Setting Professional Modifier Global Typical Low $7.41 Median $12.30 Typical High $20.89	Professional	Global	$7.41	$12.30	$20.89

Where Delaware 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.

Delaware· 46th of 51

$12.30

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.