Free T4 (thyroid) test at Ascension Seton Northwest
CPT 84439 · Austin, TX
These are Ascension Seton Northwest's own posted figures from its standard-charges file dated January 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 111 Texas hospitals we index that post a cash price for this service: lowest $8.84, median $214.88, highest $1,966.36. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| North Austin Medical Center Austin, TX | 3.4 mi | $1,045.00 | $1,045.00 | 2026-09-01 |
| Texas Childrens Hospital North Austin Campus Austin, TX | 6.0 mi | $120.60 | $180.00 | 2026-03-05 |
| Ascension Seton Medical Center Austin Austin, TX | 7.6 mi | $43.83 | $121.75 | 2026-01-01 |
| St. David's Medical Center Austin, TX | 7.6 mi | $327.00 | $327.00 | 2026-09-01 |
| Ascension Seton Cedar Park Cedar Park, TX | 8.0 mi | $171.69 | $476.93 | 2026-01-01 |
| Dell Children's Medical Center Austin, TX | 8.1 mi | $195.65 | $279.50 | 2026-01-01 |
| Dell Seton Medical Center at the University of TX Austin, TX | 9.2 mi | $39.51 | $109.75 | 2026-01-01 |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX | 9.8 mi | $144.14 | $240.24 | 2026-06-13 |
Distances are straight-line from ZIP code centers. Each hospital's figures come from its own file; files are updated on different dates.
Every row for CPT 84439 in this hospital's file
| Row in the hospital's file | Setting | Cash | Gross | Insurer min – max |
|---|---|---|---|---|
| THYROXINE, FREE BY EQUILIBRIUM line 14569625 | both | $43.83 | $121.75 | $5.77 – $67.04 |
| THYROXINE, FREE BY EQUILIBRIUM line 14569626 | outpatient | $43.83 | $121.75 | $5.77 – $67.04 |
| T4 FREE line 14619960 | both | $39.51 | $109.75 | $5.77 – $67.04 |
| T4 FREE line 14619961 | outpatient | $39.51 | $109.75 | $5.77 – $67.04 |
| ASSAY OF FREE THYROXINE line 15067701 | inpatient | $8.84 – $16.24 | ||
| ASSAY OF FREE THYROXINE line 15067702 | outpatient | $8.84 – $16.24 | ||
| ASSAY OF FREE THYROXINE line 15455059 | both | $5.77 – $67.04 |
The first row is the one used above. A price for one code usually covers the hospital's facility charge only; the doctor, anesthesia, pathology and other services can be billed separately. Ask the hospital for a good faith estimate before a scheduled service: if you pay yourself and the bill comes in $400 or more above the estimate, you can dispute it under the No Surprises Act.
Check a bill from this hospital All Ascension Seton Northwest prices