Free T4 test cost in Jackson, MS — inpatient
In Jackson, MS, 3 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test as an inpatient: from $6.09 to $147.96, with a median of $9.43. The lowest listed price is at Mississippi Baptist Medical Center — $3.34 less than the median here. Across Mississippi, the median is $24.48 at 15 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 Feb 17, 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 Jackson, MS.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mississippi Baptist Medical Center lowest Jackson, MS · (601) 968-1000 T4 (THYROXINE) FREE BY EQUILIBRIUM DIALYSIS | $6.09 | $29.00 | $11.02–$23.20 | 79% | Feb 25, 2026 source file |
| Baptist Medical Center-Yazoo Yazoo City, MS · (662) 746-2261 T4 (THYROXINE) FREE BY EQUILIBRIUM DIALYSIS | $9.43 | $23.00 | $8.74–$20.70 | 59% | Feb 17, 2026 source file |
| Baptist Medical Center-Yazoo Yazoo City, MS · (662) 746-2261 T4 (THYROXINE) FREE | $41.00 | $100.00 | $38.00–$90.00 | 59% | Feb 17, 2026 source file |
| Mississippi Baptist Medical Center Jackson, MS · (601) 968-1000 T4 (THYROXINE) FREE | $57.75 | $275.00 | $104.50–$220.00 | 79% | Feb 25, 2026 source file |
| River Oaks Hospital Flowood, MS · (601) 932-1030 Thyroxine 4 Free | $147.96 | $548.00 | $55.35–$493.20 | 73% | Apr 1, 2026 source file |
Inpatient: lowest $6.09, median $9.43, highest $147.96 — a 24.3× difference within the same market.
As an outpatient, the same code is billed by 3 facilities here, median $9.43 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 3 of 3 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 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.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 84439 ($60.00). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| River Oaks Hospital Flowood, MSThyroxine 4 Free (CQ) | $1.35 | file |