Free T4 test cost in Jackson, MS
In Jackson, MS, 13 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test: from $6.09 to $116.40, with a median of $62.40. The lowest listed price is at Mississippi Baptist Medical Center — $56.31 less than the median here. Across Mississippi, the median is $35.42 at 60 hospitals.
- The median here, $62.40, is 6% below the US median of $66.50.
- That is 6.9× Medicare's 2026 national rate for the same service ($9.02).
- 2 of 13 hospitals list a cash price equal to their full list price, with no self-pay discount.
Cash prices at 13 facilities across 10 cities for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Nov 9, 2026; the hospital files themselves were last updated between Apr 30, 2025 and Sep 21, 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 |
|---|---|---|---|---|
| Mississippi Baptist Medical Center lowest Jackson, MS · (601) 968-1000 T4 (THYROXINE) FREE BY EQUILIBRIUM DIALYSIS File of Feb 25, 2026 · source file | $6.09 | $29.00 | $5.29–$25.26 | 79% |
| Baptist Medical Center-Yazoo Yazoo City, MS · (662) 746-2261 T4 (THYROXINE) FREE BY EQUILIBRIUM DIALYSIS File of Feb 17, 2026 · source file | $9.43 | $23.00 | $7.43–$20.70 | 59% |
| Holmes County Hospital and Clinics Lexington, MS · (662) 834-1321 HC ASSAY OF FREE THYROXINE File of Sep 8, 2026 · source file | $32.00 | $80.00 | $8.36–$80.00 | 60% |
| S E Lackey Memorial Hospital Forest, MS · (601) 469-4151 Thyroxine (thyroid chemical), free File of May 27, 2026 · source file | $33.00 | $33.00 | $2.98–$100.00 | — |
| Baptist Medical Center-Yazoo Yazoo City, MS · (662) 746-2261 T4 (THYROXINE) FREE File of Feb 17, 2026 · source file | $41.00 | $100.00 | $9.02–$90.00 | 59% |
| Ochsner Scott Regional Morton, MS · (601) 732-6301 HC T4, FREE File of Apr 1, 2026 · source file | $52.92 | $84.00 | $8.12–$67.20 | 37% |
| Mississippi Baptist Medical Center Jackson, MS · (601) 968-1000 T4 (THYROXINE) FREE File of Feb 25, 2026 · source file | $57.75 | $275.00 | $5.29–$220.00 | 79% |
| University of Mississippi Medical Center Jackson, MS · (601) 984-4100 84439 THYROXINE THYROID CHEMICAL File of Sep 8, 2026 · source file | $62.40 | $156.00 | $8.36–$140.40 | 60% |
| UMMC Madison Canton, MS · (601) 855-4000 84439 THYROXINE THYROID CHEMICAL File of Sep 21, 2026 · source file | $62.40 | $156.00 | $8.12–$25.35 | 60% |
| Magee general hospital Magee, MS · (601) 849-5070 HC Assay of Free Thyroxine - T4 Free+1 more line at this price File of Aug 13, 2026 · source file | $65.00 | $65.00 | $9.02–$65.00 | — |
| Merit Health Central Jackson, MS · (601) 376-1000 Thyroxine 4 Free File of Apr 1, 2026 · source file | $84.15 | $561.00 | $7.67–$561.00 | 85% |
| Simpson General Hospital Cah Mendenhall, MS · (601) 847-2221 Thyroxine (thyroid chemical), free File of Apr 30, 2025 · source file | $86.59 | $123.70 | $7.71–$105.15 | 30% |
| Merit Health Womans Hospital Flowood, MS Thyroxine 4 Free File of Apr 1, 2026 · source file | $96.18 | $458.00 | $8.12–$458.00 | 79% |
| River Oaks Hospital Flowood, MS · (601) 932-1030 Thyroxine 4 Free File of Apr 1, 2026 · source file | $98.64 | $548.00 | $8.12–$548.00 | 82% |
| Crossgates River Oaks Hospital Brandon, MS · (601) 825-2811 Thyroxine 4 Free File of Apr 1, 2026 · source file | $116.40 | $776.00 | $8.12–$776.00 | 85% |
Outpatient: lowest $6.09, median $62.40, highest $116.40 — a 19.1× difference within the same market.
As an inpatient, the same code is billed by 8 facilities here, median $87.46. 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 11 of 13 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 free T4 test is, what the price covers and why prices differ: Free T4 test explained.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 84439 ($57.00). 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.
| Hospital | Cash price | File |
|---|---|---|
| River Oaks Hospital Flowood, MSThyroxine 4 Free (CQ) | $0.90 | file |