Lab tests CPT 84439 Outpatient

Free T4 test cost in Amarillo, TX

In Amarillo, TX, 2 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test: from $30.50 to $30.50, with a median of $30.50. The lowest listed price is at BSA Hospital and 1 other hospital. Across Texas, the median is $90.20 at 299 hospitals.

Cash prices at 2 facilities for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 29, 2026; the hospital files themselves were last updated between — and —.

Lowest$30.50BSA Hospital + 1 more
Median$30.50half pay less
Highest$30.50in this market
Difference1.0×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Amarillo, TX.

median
Lowest $30.50Highest $30.50

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
BSA Hospital lowest Amarillo, TX · (806) 212-2000 Thyroxine (thyroid chemical), free $30.50 $305.00 $7.58–$259.25 90% —
source file
Harrington Cancer Center lowest Amarillo, TX Thyroxine (thyroid chemical), free $30.50 $305.00 $7.58–$259.25 90% —
source file

Outpatient: lowest $30.50, median $30.50, highest $30.50.

As an inpatient, the same code is billed by 2 facilities here, median $30.50. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

Cash or insurance?

At 2 of 2 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.

What it is

A free T4 test measures thyroxine that is not bound to proteins, the active form of the main thyroid hormone. It is usually ordered with or after a TSH test to check for an underactive or overactive thyroid and to adjust thyroid medicine.

What the price covers

The price usually covers the free T4 test only. The blood draw and the TSH test (84443) are billed separately.