Total T4 test cost in Charleston, SC
In Charleston-North Charleston, SC, 8 hospitals list a cash price for total thyroxine (T4) blood test: from $16.90 to $157.00, with a median of $34.70. The lowest listed price is at Roper St Francis Hospital Berkeley and 3 other hospitals — $17.80 less than the median here. Across South Carolina, the median is $85.91 at 38 hospitals.
Cash prices at 8 facilities across 5 cities for code 84436, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 28, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Sep 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 Charleston-North Charleston, SC.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Roper St Francis Hospital Berkeley lowest Summerville, SC · (854) 529-3002 HC So1 Thyroxine Total | $16.90 | $26.00 | — | 35% | — source file |
| Roper St Francis Mount Pleasant Hospital lowest Mount Pleasant, SC · (843) 724-2954 HC So1 Thyroxine Total | $16.90 | $26.00 | — | 35% | — source file |
| Roper Hospital lowest Charleston, SC · (843) 724-2800 HC So1 Thyroxine Total | $16.90 | $26.00 | — | 35% | — source file |
| Bon Secours St Francis Xavier Hospital lowest Charleston, SC · (843) 402-1006 HC So1 Thyroxine Total | $16.90 | $26.00 | — | 35% | — source file |
| Roper St Francis Mount Pleasant Hospital Mount Pleasant, SC · (843) 724-2954 HC So Thyroxine Total | $24.70 | $38.00 | — | 35% | — source file |
| Roper Hospital Charleston, SC · (843) 724-2800 HC So Thyroxine Total | $24.70 | $38.00 | — | 35% | — source file |
| Bon Secours St Francis Xavier Hospital Charleston, SC · (843) 402-1006 HC So Thyroxine Total | $24.70 | $38.00 | — | 35% | — source file |
| Roper St Francis Hospital Berkeley Summerville, SC · (854) 529-3002 HC So Thyroxine Total | $24.70 | $38.00 | — | 35% | — source file |
| MUSC Medical Center Charleston, SC · (843) 792-2300 HB THYROXINE TOTAL | $52.50 | $105.00 | — | 50% | Apr 1, 2026 source file |
| Bon Secours St Francis Xavier Hospital Charleston, SC · (843) 402-1006 HC Assay of Thyroxine Total | $96.85 | $149.00 | — | 35% | — source file |
| Roper Hospital Charleston, SC · (843) 724-2800 HC Assay of Thyroxine Total | $96.85 | $149.00 | — | 35% | — source file |
| Roper St Francis Mount Pleasant Hospital Mount Pleasant, SC · (843) 724-2954 HC Assay of Thyroxine Total | $96.85 | $149.00 | — | 35% | — source file |
| Roper St Francis Hospital Berkeley Summerville, SC · (854) 529-3002 HC Assay of Thyroxine Total | $96.85 | $149.00 | — | 35% | — source file |
| HCA Healthcare Live Oak Mental Health and Wellness Ladson, SC Thyroxine; total | $157.00 | $157.00 | $12.02–$13.33 | — | Sep 1, 2026 source file |
| HCA Healthcare Live Oak Mental Health and Wellness Ladson, SC Thyroxine; total Other Outpatient | $157.00 | $157.00 | $7.42 | — | Sep 1, 2026 source file |
| HCA Healthcare Live Oak Mental Health and Wellness Ladson, SC THYROXINE T4 TOTAL | $157.00 | $157.00 | $25.59–$149.15 | — | Sep 1, 2026 source file |
| HCA Healthcare Trident Hospital Moncks Corner, SC · (843) 847-4100 Thyroxine; total | $157.00 | $157.00 | $12.02–$13.33 | — | Sep 1, 2026 source file |
| HCA Healthcare Trident Hospital Moncks Corner, SC · (843) 847-4100 Thyroxine; total Other Outpatient | $157.00 | $157.00 | $7.42 | — | Sep 1, 2026 source file |
| HCA Healthcare Trident Hospital Moncks Corner, SC · (843) 847-4100 THYROXINE T4 TOTAL | $157.00 | $157.00 | $25.59–$149.15 | — | Sep 1, 2026 source file |
| HCA Healthcare Summerville Hospital Summerville, SC · (843) 847-4100 THYROXINE T4 TOTAL | $157.00 | $157.00 | $25.59–$149.15 | — | Sep 1, 2026 source file |
| HCA Healthcare Summerville Hospital Summerville, SC · (843) 847-4100 Thyroxine; total Other Outpatient | $157.00 | $157.00 | $7.42 | — | Sep 1, 2026 source file |
| HCA Healthcare Summerville Hospital Summerville, SC · (843) 847-4100 Thyroxine; total | $157.00 | $157.00 | $6.87–$13.33 | — | Sep 1, 2026 source file |
Outpatient: lowest $16.90, median $34.70, highest $157.00 — a 9.3× difference within the same market.
As an inpatient, the same code is billed by 5 facilities here, median $16.90. 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 0 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 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 it is
A total T4 test measures all the thyroxine hormone in the blood, both bound and free. Most doctors now order free T4 (84439) instead, which is less affected by pregnancy and medicines.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.