Free T4 test cost in Dayton, OH — inpatient
In Dayton-Kettering-Beavercreek, OH, 3 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test as an inpatient: from $94.00 to $94.00, with a median of $94.00. The lowest listed price is at Dayton Osteopathic Hospital and 2 other hospitals. Across Ohio, the median is $40.30 at 100 hospitals.
Cash prices at 3 facilities across 3 cities for code 84439, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Dayton-Kettering-Beavercreek, OH.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Dayton Osteopathic Hospital lowest Dayton, OH Hc Free T4 | $94.00 | $235.00 | — | 60% | Apr 1, 2026 source file |
| Kettering Medical Center lowest Troy, OH · (937) 980-7000 Hc Free T4 | $94.00 | $235.00 | — | 60% | Apr 1, 2026 source file |
| Greene Memorial Hospital lowest Xenia, OH · (937) 352-2000 Hc Free T4 | $94.00 | $235.00 | — | 60% | Apr 1, 2026 source file |
| Dayton Osteopathic Hospital Dayton, OH Hc Thyroxine, Free T4 Dialysis Mass Spec, Lc | $259.20 | $648.00 | — | 60% | Apr 1, 2026 source file |
| Kettering Medical Center Troy, OH · (937) 980-7000 Hc Thyroxine, Free T4 Dialysis Mass Spec, Lc | $259.20 | $648.00 | — | 60% | Apr 1, 2026 source file |
| Greene Memorial Hospital Xenia, OH · (937) 352-2000 Hc Thyroxine, Free T4 Dialysis Mass Spec, Lc | $259.20 | $648.00 | — | 60% | Apr 1, 2026 source file |
Inpatient: lowest $94.00, median $94.00, highest $94.00.
As an outpatient, the same code is billed by 5 facilities here, median $94.00 — that is the price to compare if you are not being admitted.
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.