Lab tests CPT 84439 Outpatient

Free T4 test cost in Cape Coral, FL

In Cape Coral-Fort Myers, FL, 5 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test: from $7.20 to $7.20, with a median of $7.20. The lowest listed price is at Gulf Coast Medical Center and 4 other hospitals. Across Florida, the median is $70.60 at 81 hospitals.

Cash prices at 5 facilities across 2 cities for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 26, 2026 and Mar 26, 2026.

Lowest$7.20Gulf Coast Medical Center + 4 more
Median$7.20half pay less
Highest$7.20in 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 Cape Coral-Fort Myers, FL.

median
Lowest $7.20Highest $19.80

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Gulf Coast Medical Center lowest Fort Myers, FL · (239) 343-1000 HC Lab T4 (Thyroxine), Free by Dialysis, Serum $7.20 $36.00 $14.40–$28.80 80% Mar 26, 2026
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Lee Memorial Hospital lowest Fort Myers, FL · (239) 343-5000 HC Lab T4 (Thyroxine), Free by Dialysis, Serum $7.20 $36.00 $14.40–$28.80 80% Mar 26, 2026
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Healthpark Medical Center lowest Fort Myers, FL HC Lab T4 (Thyroxine), Free by Dialysis, Serum $7.20 $36.00 $14.40–$28.80 80% Mar 26, 2026
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Rehab Hospital lowest Fort Myers, FL HC Lab T4 (Thyroxine), Free by Dialysis, Serum $7.20 $36.00 $14.40–$28.80 80% Mar 26, 2026
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Cape Coral Hospital lowest Cape Coral, FL · (239) 424-2000 HC Lab T4 (Thyroxine), Free by Dialysis, Serum $7.20 $36.00 $14.40–$28.80 80% Mar 26, 2026
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Rehab Hospital Fort Myers, FL HC Lab T4 Free $19.80 $99.00 $39.60–$79.20 80% Mar 26, 2026
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Cape Coral Hospital Cape Coral, FL · (239) 424-2000 HC Lab T4 Free $19.80 $99.00 $39.60–$79.20 80% Mar 26, 2026
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Gulf Coast Medical Center Fort Myers, FL · (239) 343-1000 HC Lab T4 Free $19.80 $99.00 $39.60–$79.20 80% Mar 26, 2026
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Healthpark Medical Center Fort Myers, FL HC Lab T4 Free $19.80 $99.00 $39.60–$79.20 80% Mar 26, 2026
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Lee Memorial Hospital Fort Myers, FL · (239) 343-5000 HC Lab T4 Free $19.80 $99.00 $39.60–$79.20 80% Mar 26, 2026
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Outpatient: lowest $7.20, median $7.20, highest $7.20.

As an inpatient, the same code is billed by 5 facilities here, median $7.20. 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 5 of 5 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 5 it is 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.