Free T3 test cost in Dallas, TX
In Dallas-Fort Worth-Arlington, TX, 40 hospitals list a cash price for Free T3 thyroid hormone test: from $48.00 to $362.66, with a median of $139.50. The lowest listed price is at MSH Partners, LLC — $91.50 less than the median here. Across Texas, the median is $139.50 at 96 hospitals.
Cash prices at 40 facilities across 22 cities for code 84481, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Jan 31, 2025 and Jun 29, 2026.
Lowest$48.00MSH Partners, LLC
Median$139.50half pay less
Highest$362.66in this market
Difference7.6×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 Dallas-Fort Worth-Arlington, TX.
median
Lowest $48.00Highest $362.66
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| MSH Partners, LLC lowest Dallas, TX T3 Free | $48.00 | $80.00 | $0.47–$8,427.00 | 40% | Apr 14, 2026 source file |
| The University of Texas Southwestern Medical Center at Dallas Dallas, TX HCHG TRIIODOTHYRONINE (T-3) FREE | $84.00 | $168.00 | $14.23–$152.68 | 50% | Mar 10, 2026 source file |
| The University of Texas Southwestern Medical Center at Dallas Dallas, TX ASSAY OF TRIIODOTHYRONINE T3 FREE | $86.25 | $115.00 | $5.00–$103.50 | 25% | Mar 10, 2026 source file |
| The University of Texas Southwestern Medical Center at Dallas Dallas, TX T3 FREE DIALYSIS | $86.25 | $115.00 | $5.00–$103.50 | 25% | Mar 10, 2026 source file |
| The University of Texas Southwestern Medical Center at Dallas Dallas, TX FREE T3.... | $86.25 | $115.00 | $5.00–$103.50 | 25% | Mar 10, 2026 source file |
| The University of Texas Southwestern Medical Center at Dallas Dallas, TX T3 FREE | $86.25 | $115.00 | $5.00–$103.50 | 25% | Mar 10, 2026 source file |
| Frisco Medical Center LLP Frisco, TX FREE ASSAY (FT-3) | $112.16 | $186.93 | — | 40% | Jan 31, 2025 source file |
| Texas Health Presbyterian Hospital Allen Allen, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital HurstEulessBedford Bedford, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Alliance Fort Worth, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| AMH Cath Labs LLC Arlington, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Arlington Memorial Hospital Arlington, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Hospital Frisco Frisco, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Azle Azle, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Fort Worth Fort Worth, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Physicians Medical Center LLC Plano, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Flower Mound Hospital Partners LLC Flower Mound, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Cleburne Cleburne, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Dallas Dallas, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Denton Denton, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Specialty Hospital Fort Worth Fort Worth, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | — | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Southwest Fort Worth Fort Worth, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Southlake Specialty Hospital LLC Southlake, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Rockwall Regional Hospital LLC Rockwall, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Plano Plano, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Kaufman Kaufman, TX TRIIODOTHYRONINE FREE (FT3) R1 | $139.50 | $232.50 | $14.23–$218.78 | 40% | Apr 21, 2026 source file |
| Baylor Scott & White Medical Center - Centennial Frisco, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Lake Pointe Rowlett, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Denton Denton, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - McKinney McKinney, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White The Heart Hospital - Plano Plano, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White All Saints Medical Center - Fort Worth Fort Worth, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Frisco at PGA Parkway Frisco, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - McKinney McKinney, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Grapevine Grapevine, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor University Medical Center Dallas, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center at Waxahachie Waxahachie, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Irving Irving, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Dallas Dallas, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Heart and Vascular Hospital - Waxahachie Waxahachie, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Baylor Scott & White Medical Center - Plano Plano, TX HC TRIIODOTHYRONINE T3 - FREE | $175.79 | $292.99 | $10.00–$219.74 | 40% | Jun 29, 2026 source file |
| Texas Regional Medical Center, LLC Sunnyvale, TX T3 Free | $307.20 | $512.00 | $76.67–$162.08 | 40% | Apr 1, 2026 source file |
| Texas Health Presbyterian Hospital Plano Plano, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Cleburne Cleburne, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Arlington Memorial Hospital Arlington, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Hospital Frisco Frisco, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Alliance Fort Worth, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| AMH Cath Labs LLC Arlington, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Allen Allen, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital HurstEulessBedford Bedford, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Rockwall Regional Hospital LLC Rockwall, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Southlake Specialty Hospital LLC Southlake, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Southwest Fort Worth Fort Worth, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Specialty Hospital Fort Worth Fort Worth, TX T3 FREE | $324.00 | $540.00 | — | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Dallas Dallas, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Kaufman Kaufman, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Presbyterian Hospital Denton Denton, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Physicians Medical Center LLC Plano, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Flower Mound Hospital Partners LLC Flower Mound, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Azle Azle, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Harris Methodist Hospital Fort Worth Fort Worth, TX T3 FREE | $324.00 | $540.00 | $14.23–$508.14 | 40% | Apr 21, 2026 source file |
| Texas Health Hospital Mansfield Mansfield, TX HC T3, FREE - ARUP | $362.66 | $362.66 | — | — | Apr 1, 2026 source file |
| Texas Health Huguley Hospital Fort Worth South Burleson, TX HC T3, FREE - ARUP | $362.66 | $362.66 | — | — | Apr 1, 2026 source file |
| Texas Health Hospital Mansfield Mansfield, TX HC T3 FREE - QWDL | $362.66 | $362.66 | — | — | Apr 1, 2026 source file |
| Texas Health Hospital Mansfield Mansfield, TX HC T3 FREE | $362.66 | $362.66 | — | — | Apr 1, 2026 source file |
| Texas Health Huguley Hospital Fort Worth South Burleson, TX HC T3 FREE | $362.66 | $362.66 | — | — | Apr 1, 2026 source file |
| Texas Health Huguley Hospital Fort Worth South Burleson, TX HC T3 FREE - QWDL | $362.66 | $362.66 | — | — | Apr 1, 2026 source file |
Outpatient: lowest $48.00, median $139.50, highest $362.66 — a 7.6× difference within the same market.
As an inpatient, the same code is billed by 39 facilities here, median $139.50. 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 35 of 36 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
Free T3 is the active thyroid hormone not bound to proteins. It is usually checked after TSH (84443) and free T4 (84439), mainly when an overactive thyroid is suspected.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.