Free T4 test cost in Austin, TX — inpatient
In Austin-Round Rock-San Marcos, TX, 13 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test as an inpatient: from $33.00 to $171.69, with a median of $33.00. The lowest listed price is at Baylor Scott & White Medical Center - Austin and 6 other hospitals. Across Texas, the median is $39.51 at 101 hospitals.
Cash prices at 13 facilities across 10 cities for code 84439, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 5, 2026 and Jun 13, 2026.
Lowest$33.00Baylor Scott & White Medical Center - Austin + 6 more
Median$33.00half pay less
Highest$171.69in this market
Difference5.2×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Austin-Round Rock-San Marcos, TX.
median
Lowest $33.00Highest $171.69
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Baylor Scott & White Medical Center - Austin lowest Austin, TX · (512) 654-2100 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Emergency Medical Center - Cedar Park lowest Cedar Park, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$35.75 | 40% | Jun 3, 2026 source file |
| Baylor Scott & White Medical Center - Lakeway lowest Lakeway, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$49.50 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Round Rock lowest Round Rock, TX · (512) 509-0401 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$49.50 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Taylor lowest Taylor, TX · (512) 352-7611 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$44.00 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Medical Center - Pflugerville lowest Pflugerville, TX · (512) 654-6100 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$49.50 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Buda lowest Buda, TX · (737) 999-6200 HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS | $33.00 | $55.00 | $30.25–$38.50 | 40% | Jun 13, 2026 source file |
| Ascension Seton Kyle, TX · (512) 324-5000 T4 FREE | $37.98 | $105.50 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Kyle, TX · (512) 324-5000 THYROXINE, FREE BY EQUILIBRIUM | $37.98 | $105.50 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Austin, TX T4 FREE | $39.51 | $109.75 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Austin, TX T4 FREE | $39.51 | $109.75 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Austin, TX THYROXINE, FREE BY EQUILIBRIUM | $39.51 | $109.75 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Austin, TX T4 FREE | $39.51 | $109.75 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Smithville, TX · (512) 237-3214 THYROXINE, FREE BY EQUILIBRIUM | $39.51 | $109.75 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Smithville, TX · (512) 237-3214 T4 FREE | $39.51 | $109.75 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Austin, TX T4 FREE | $39.51 | $109.75 | $5.77–$67.04 | 64% | — source file |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$60.75 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$47.25 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$54.00 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$43.88 | 40% | Jun 3, 2026 source file |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$60.75 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC REF ARUP 0093244 FREE T4 BY EQUIL DIALYSIS - TMS | $40.50 | $67.50 | $37.12–$60.75 | 40% | Jun 13, 2026 source file |
| Ascension Seton Austin, TX THYROXINE, FREE BY EQUILIBRIUM | $43.83 | $121.75 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Austin, TX THYROXINE, FREE BY EQUILIBRIUM | $43.83 | $121.75 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Austin, TX THYROXINE, FREE BY EQUILIBRIUM | $43.83 | $121.75 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Luling, TX · (830) 875-7000 T4 FREE | $53.10 | $147.50 | $5.77–$67.04 | 64% | — source file |
| Ascension Seton Austin, TX T4 FREE | $76.83 | $109.75 | $5.77–$67.04 | 30% | — source file |
| Ascension Seton Austin, TX THYROXINE, FREE BY EQUILIBRIUM | $76.83 | $109.75 | $5.77–$67.04 | 30% | — source file |
| Ascension Seton Luling, TX · (830) 875-7000 THYROXINE, FREE BY EQUILIBRIUM | $94.05 | $261.25 | $5.77–$117.56 | 64% | — source file |
| Texas Children's Hospital - Austin Austin, TX · (832) 824-1100 TC FREE T4 BY DIRECT EQUILIBRIUM DIALYSIS | $112.56 | $168.00 | $67.20–$159.60 | 33% | Mar 5, 2026 source file |
| Texas Children's Hospital - Austin Austin, TX · (832) 824-1100 TC T4-FREE (FT4) | $120.60 | $180.00 | $72.00–$171.00 | 33% | Mar 5, 2026 source file |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC THYROXINE - FREE | $144.14 | $240.24 | $132.13–$168.17 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC THYROXINE (T4), FREE | $144.14 | $240.24 | $132.13–$168.17 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Buda Buda, TX · (737) 999-6200 HC THYROXINE (T4), FREE BY DIALYSIS | $144.14 | $240.24 | $132.13–$168.17 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC THYROXINE (T4), FREE | $144.14 | $240.24 | $132.13–$168.17 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC THYROXINE - FREE | $144.14 | $240.24 | $132.13–$168.17 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC THYROXINE (T4), FREE BY DIALYSIS | $144.14 | $240.24 | $132.13–$216.22 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC THYROXINE (T4), FREE | $144.14 | $240.24 | $132.13–$216.22 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Pflugerville Pflugerville, TX · (512) 654-6100 HC THYROXINE - FREE | $144.14 | $240.24 | $132.13–$216.22 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC THYROXINE (T4), FREE BY DIALYSIS | $144.14 | $240.24 | $132.13–$192.19 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Medical Center - Austin Austin, TX · (512) 654-2100 HC THYROXINE (T4), FREE BY DIALYSIS | $144.14 | $240.24 | $132.13–$168.17 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC THYROXINE - FREE | $144.14 | $240.24 | $132.13–$192.19 | 40% | Jun 12, 2026 source file |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC THYROXINE (T4), FREE BY DIALYSIS | $144.14 | $240.24 | $132.13–$216.22 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC THYROXINE (T4), FREE | $144.14 | $240.24 | $132.13–$216.22 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Round Rock Round Rock, TX · (512) 509-0401 HC THYROXINE - FREE | $144.14 | $240.24 | $132.13–$216.22 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX HC THYROXINE (T4), FREE BY DIALYSIS | $144.14 | $240.24 | $132.13–$216.22 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX HC THYROXINE (T4), FREE | $144.14 | $240.24 | $132.13–$216.22 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Medical Center - Lakeway Lakeway, TX HC THYROXINE - FREE | $144.14 | $240.24 | $132.13–$216.22 | 40% | Jun 13, 2026 source file |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX HC THYROXINE (T4), FREE BY DIALYSIS | $144.14 | $240.24 | $132.13–$156.16 | 40% | Jun 3, 2026 source file |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX HC THYROXINE (T4), FREE | $144.14 | $240.24 | $132.13–$156.16 | 40% | Jun 3, 2026 source file |
| Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park, TX HC THYROXINE - FREE | $144.14 | $240.24 | $132.13–$156.16 | 40% | Jun 3, 2026 source file |
| Baylor Scott & White Medical Center - Taylor Taylor, TX · (512) 352-7611 HC THYROXINE (T4), FREE | $144.14 | $240.24 | $132.13–$192.19 | 40% | Jun 12, 2026 source file |
| Ascension Cedar Park Cedar Park, TX · (512) 528-7000 THYROXINE T4, FREE | $171.69 | $476.93 | $5.77–$214.62 | 64% | — source file |
Inpatient: lowest $33.00, median $33.00, highest $171.69 — a 5.2× difference within the same market.
As an outpatient, the same code is billed by 13 facilities here, median $33.00 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 13 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 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.