Lab tests CPT 84439 Outpatient

Free T4 test cost in Joe, FL

In Joe, FL, 1 hospital lists a cash price for free T4 (free thyroxine) thyroid blood test: from $18.48 to $18.48, with a median of $18.48. Across Florida, the median is $70.60 at 81 hospitals.

Cash prices at 1 facility for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between — and —.

Lowest$18.48Ascension Sacred Heart Gulf
Median$18.48half pay less
Highest$18.48in 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 Joe, FL.

median
Lowest $18.48Highest $156.86

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Ascension Sacred Heart Gulf lowest Joe, FL · (850) 229-5600 T-4(FREE THYRONI $18.48 $46.20 $9.02–$34.40 60% —
source file
Ascension Sacred Heart Gulf Joe, FL · (850) 229-5600 FREE T4 (THYROXINE) $156.86 $392.14 $9.02–$34.40 60% —
source file

Outpatient: lowest $18.48, median $18.48, highest $18.48.

Cash or insurance?

At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated. 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.