Lab tests CPT 84439 Texas Outpatient

Free T4 test cost in Texas

In Texas, 101 hospitals publish a cash price for free T4 (free thyroxine) thyroid blood test: from $8.40 to $284.70, with a median of $39.51. The lowest price is at El Paso Children's Hospital (El Paso). The highest price is 33.9× the lowest.

Outpatient cash prices, one line per hospital — its lowest listed price for code 84439. Prices for both sides of the body and inpatient prices are not mixed in. Collected Sep 24, 2026.

Lowest$8.40El Paso Children's Hospital

Median$39.51half pay less

Highest$284.70in Texas

Lowest saves$31.11vs the median

Hospitals in Texas, cheapest first

Hospital	Cash price	List price	File date
El Paso Children's Hospital lowest El Paso · El Paso, TX T4 FREE-	$8.40	$42.00	— source file
Hsa St. Joseph Houston · Houston-Pasadena-The Woodlands, TX RL T-4 (THYROXINE), FREE	$8.84	$490.50	Sep 1, 2026 source file
Harris Health Taub Loop Houston · Houston-Pasadena-The Woodlands, TX FREE T4 BY DIALYSIS	$9.02	$344.00	— source file
Harris Health Houston · Houston-Pasadena-The Woodlands, TX THYROXINE (T4) FREE DIRECT(LABCORP) LAB5040	$9.02	$9.00	— source file
Houston Methodist Baytown Hospital Baytown · Houston-Pasadena-The Woodlands, TX HC T4 FREE DIRECT DIALYSIS	$10.50	$21.00	Apr 1, 2026 source file
Houston Methodist Clear Lake Hospital Nassau Bay · Houston-Pasadena-The Woodlands, TX HC T4 FREE DIRECT DIALYSIS	$10.50	$21.00	Apr 1, 2026 source file
Houston Methodist Continuing Care Hospital Katy · Houston-Pasadena-The Woodlands, TX HC T4 FREE DIRECT DIALYSIS	$10.50	$21.00	Apr 1, 2026 source file
Houston Methodist Cypress Hospital Cypress · Houston-Pasadena-The Woodlands, TX HC T4 FREE DIRECT DIALYSIS	$10.50	$21.00	Apr 1, 2026 source file
Houston Methodist The Woodlands Hospital The Woodlands · Houston-Pasadena-The Woodlands, TX HC T4 FREE DIRECT DIALYSIS	$10.50	$21.00	Apr 1, 2026 source file
Methodist Sugar Land Hospital Sugar Land · Houston-Pasadena-The Woodlands, TX HC T4 FREE DIRECT DIALYSIS	$10.50	$21.00	Apr 1, 2026 source file
Methodist West Houston Hospital Houston · Houston-Pasadena-The Woodlands, TX HC T4 FREE DIRECT DIALYSIS	$10.50	$21.00	Apr 1, 2026 source file
Methodist Willowbrook Hospital Houston · Houston-Pasadena-The Woodlands, TX HC T4 FREE DIRECT DIALYSIS	$10.50	$21.00	Apr 1, 2026 source file
The Methodist Hospital Houston · Houston-Pasadena-The Woodlands, TX HC T4 FREE DIRECT DIALYSIS	$10.50	$21.00	Apr 1, 2026 source file
The University of Texas Southwestern Medical Center at Dallas Dallas · Dallas-Fort Worth-Arlington, TX ASSAY OF FREE THYROXINE	$12.75	$17.00	Mar 10, 2026 source file
University Medical Center Surgical Hospital Dieter El Paso · El Paso, TX SH CLIN_CHEM THYROXINE (T-4) FREE	$13.28	$66.40	— source file
University Medical Center El Paso El Paso · El Paso, TX LWS THYROXINE (T-4) FREE	$13.94	$69.72	— source file
University Health System San Antonio · San Antonio-New Braunfels, TX HC ASSAY OF FREE THYROXINE - T4 FREE	$30.75	$123.00	Oct 14, 2025 source file
Baylor Scott & White All Saints Medical Center - Fort Worth Fort Worth · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Continuing Care Hospital Temple · Killeen-Temple, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 12, 2026 source file
Baylor Scott & White Emergency Medical Center - Cedar Park Cedar Park · Austin-Round Rock-San Marcos, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 3, 2026 source file
Baylor Scott & White Heart and Vascular Hospital - Dallas Dallas · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Heart and Vascular Hospital - Waxahachie Waxahachie · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White McLane Children's Medical Center Temple · Killeen-Temple, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 13, 2026 source file
Baylor Scott & White Medical Center - Austin Austin · Austin-Round Rock-San Marcos, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 13, 2026 source file
Baylor Scott & White Medical Center - Brenham Brenham · Brenham, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 12, 2026 source file
Baylor Scott & White Medical Center - Buda Buda · Austin-Round Rock-San Marcos, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 13, 2026 source file
Baylor Scott & White Medical Center - Centennial Frisco · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Medical Center - College Station College Station · College Station-Bryan, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 12, 2026 source file
Baylor Scott & White Medical Center - Frisco at PGA Parkway Frisco · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Medical Center - Grapevine Grapevine · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Medical Center - Hillcrest Waco · Waco, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 13, 2026 source file
Baylor Scott & White Medical Center - Irving Irving · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Medical Center - Lake Pointe Rowlett · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Medical Center - Lakeway Lakeway · Austin-Round Rock-San Marcos, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 13, 2026 source file
Baylor Scott & White Medical Center - Marble Falls Marble Falls · Marble Falls, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 13, 2026 source file
Baylor Scott & White Medical Center - McKinney McKinney · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Medical Center - Pflugerville Pflugerville · Austin-Round Rock-San Marcos, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 13, 2026 source file
Baylor Scott & White Medical Center - Plano Plano · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Medical Center - Round Rock Round Rock · Austin-Round Rock-San Marcos, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 13, 2026 source file
Baylor Scott & White Medical Center - Taylor Taylor · Austin-Round Rock-San Marcos, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 12, 2026 source file
Baylor Scott & White Medical Center - Temple Temple · Temple, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 13, 2026 source file
Baylor Scott & White Medical Center at Waxahachie Waxahachie · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White Pavilion - Temple Temple · Killeen-Temple, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 12, 2026 source file
Baylor Scott & White The Heart Hospital - Denton Denton · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White The Heart Hospital - McKinney McKinney · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor Scott & White The Heart Hospital - Plano Plano · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Baylor University Medical Center Dallas · Dallas-Fort Worth-Arlington, TX HC REF MAYO FFT4F T4, FREE, DIRECT DIALYSIS	$33.00	$55.00	Jun 29, 2026 source file
Ascension Seton Kyle · Austin-Round Rock-San Marcos, TX T4 FREE	$37.98	$105.50	— source file
University Medical Center Lubbock · Lubbock, TX Hc Assay Of Free Thyroxine - T4 Free	$39.00	$39.00	Apr 1, 2026 source file
Ascension Seton Austin · Austin-Round Rock-San Marcos, TX THYROXINE, FREE BY EQUILIBRIUM	$39.51	$109.75	— source file
Ascension Seton Smithville · Austin-Round Rock-San Marcos, TX T4 FREE	$39.51	$109.75	— source file
Covenant Medical Center Lubbock · Lubbock, TX HC ASSAY OF FREE THYROXINE LAB	$47.46	$113.00	Apr 1, 2026 source file
Methodist Children's Hospital Lubbock · Lubbock, TX HC ASSAY OF FREE THYROXINE CDM	$47.46	$113.00	Apr 1, 2026 source file
Methodist Hospital Levelland Levelland · Lubbock, TX HC ASSAY OF FREE THYROXINE LAB	$48.72	$116.00	Apr 1, 2026 source file
Ascension Providence Waco · Waco, TX T4-FREE	$50.94	$141.50	— source file
Ascension Seton Burnet · Burnet, TX T4 FREE	$53.10	$147.50	— source file
Ascension Seton Luling · Austin-Round Rock-San Marcos, TX T4 FREE	$53.10	$147.50	— source file
Methodist Hospital Plainview Plainview · Plainview, TX HC ASSAY OF FREE THYROXINE LAB	$53.34	$127.00	Apr 1, 2026 source file
Shriners Childrens Texas Galveston · Houston-Pasadena-The Woodlands, TX THYROXINE (THYROID CHEMICAL); FREE	$67.60	$67.60	— source file
Santa Rosa Hospital - Westover Hills San Antonio · San Antonio-New Braunfels, TX HC 84439 ASSAY OF FREE THYROXINE	$68.31	$207.00	Jan 13, 2026 source file
Driscoll Children’s Hospital Corpus Christi · Corpus Christi, TX Assay of Free Thyroxine	$76.82	$384.10	Oct 6, 2025 source file
Lubbock Heritage Hospital Lubbock · Lubbock, TX HC ASSAY OF FREE THYROXINE CDM	$77.28	$184.00	Apr 1, 2026 source file
Frisco Medical Center Frisco · Dallas-Fort Worth-Arlington, TX FREE THYROXINE	$84.14	$140.24	Jan 31, 2025 source file
Driscoll Children’s Hospital Edinburg · McAllen-Edinburg-Mission, TX Assay of Free Thyroxine	$88.32	$441.60	Oct 6, 2025 source file
Reunion Rehabilitation Hospital Arlington Arlington · Dallas-Fort Worth-Arlington, TX Assay of thyroid (t4)	$103.02	$103.02	Apr 1, 2026 source file
Reunion Rehabilitation Hospital Plano Plano · Dallas-Fort Worth-Arlington, TX Assay of thyroid (t4)	$103.02	$103.02	Apr 1, 2026 source file
Texas Children's Hospital Houston · Houston-Pasadena-The Woodlands, TX TC FREE T4 BY DIRECT EQUILIBRIUM DIALYSIS	$112.56	$168.00	Mar 5, 2026 source file
Texas Children's Hospital - Austin Austin · Austin-Round Rock-San Marcos, TX TC FREE T4 BY DIRECT EQUILIBRIUM DIALYSIS	$112.56	$168.00	Mar 5, 2026 source file
CHRISTUS Hospital - Orange Orange · Beaumont-Port Arthur, TX HC 84439 T4 FREE, DIRECT DIALYSIS	$124.74	$378.00	Jan 13, 2026 source file
CHRISTUS West Beaumont Beaumont · Beaumont-Port Arthur, TX HC 84439 ASSAY OF FREE THYROXINE	$124.74	$378.00	Jan 13, 2026 source file
Christus Health Southeast Texas Beaumont · Beaumont-Port Arthur, TX HC 84439 ASSAY OF FREE THYROXINE	$124.74	$378.00	Jan 13, 2026 source file
Christus Health Southeast Texas Port Arthur · Beaumont-Port Arthur, TX HC 84439 ASSAY OF FREE THYROXINE	$124.74	$378.00	Jan 13, 2026 source file
Southeast Texas Orthopedic Specialty Center Port Arthur · Beaumont-Port Arthur, TX HC 84439 ASSAY OF FREE THYROXINE	$124.74	$378.00	Jan 13, 2026 source file
Baylor Scott and White Medical Center Uptown Dallas · Dallas-Fort Worth-Arlington, TX Thyroxine Free	$150.60	$251.00	Apr 14, 2026 source file
Covenant Long-Term Care Lubbock · Lubbock, TX HC ASSAY OF FREE THYROXINE CDM	$156.24	$372.00	Apr 1, 2026 source file
Ascension Cedar Park Cedar Park · Austin-Round Rock-San Marcos, TX THYROXINE T4, FREE	$171.69	$476.93	— source file
Baylor Scott and White Medical Center Sunnyvale Sunnyvale · Dallas-Fort Worth-Arlington, TX Throxine Free	$213.00	$355.00	Apr 1, 2026 source file
Texas Health Hospital Mansfield Mansfield · Dallas-Fort Worth-Arlington, TX HC T4 FREE BY DIALYSIS - ARUP	$214.00	$214.00	Apr 1, 2026 source file
Texas Health Huguley Hospital Fort Worth South Burleson · Dallas-Fort Worth-Arlington, TX HC T4 FREE BY DIALYSIS - ARUP	$214.00	$214.00	Apr 1, 2026 source file
AdventHealth Central Texas Killeen · Killeen-Temple, TX HC T4 FREE - THYROXINE FREE	$251.77	$251.77	Apr 1, 2026 source file
AdventHealth Rollins Brook Lampasas · Killeen-Temple, TX HC T4 FREE - THYROXINE FREE	$251.77	$251.77	Apr 1, 2026 source file
AMH Cath Labs Arlington · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Physicians Medical Center Plano · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Arlington Memorial Hospital Arlington · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Harris Methodist Hospital Alliance Fort Worth · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Harris Methodist Hospital Azle Azle · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Harris Methodist Hospital Cleburne Cleburne · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Harris Methodist Hospital Fort Worth Fort Worth · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Harris Methodist Hospital HurstEulessBedford Bedford · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Harris Methodist Hospital Southlake Southlake · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Harris Methodist Hospital Southwest Fort Worth Fort Worth · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Harris Methodist Hospital Stephenville Stephenville · Stephenville, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Hospital Frisco Frisco · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Presbyterian Hospital Allen Allen · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Presbyterian Hospital Dallas Dallas · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Presbyterian Hospital Denton Denton · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Presbyterian Hospital Flower Mound Flower Mound · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Presbyterian Hospital Kaufman Kaufman · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Presbyterian Hospital Plano Plano · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Presbyterian Hospital Rockwall Rockwall · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file
Texas Health Specialty Hospital Fort Worth Fort Worth · Dallas-Fort Worth-Arlington, TX THYROXINE FREE (FT4)	$284.70	$474.50	Apr 21, 2026 source file

By metro area

Each metro page compares every listing, including prices for both sides of the body.

Metro area	Hospitals	Lowest	Median
Dallas-Fort Worth-Arlington, TX	42	$12.75	$213.50
Houston-Pasadena-The Woodlands, TX	14	$8.84	$10.50
Austin-Round Rock-San Marcos, TX	13	$33.00	$33.00
Lubbock, TX	6	$39.00	$48.09
Beaumont-Port Arthur, TX	5	$124.74	$124.74
Killeen-Temple, TX	5	$33.00	$33.00
El Paso, TX	3	$8.40	$13.28
San Antonio-New Braunfels, TX	2	$30.75	$49.53
Waco, TX	2	$33.00	$41.97
Burnet, TX	1	$53.10	$53.10
Brenham, TX	1	$33.00	$33.00
College Station-Bryan, TX	1	$33.00	$33.00
Corpus Christi, TX	1	$76.82	$76.82
Marble Falls, TX	1	$33.00	$33.00
McAllen-Edinburg-Mission, TX	1	$88.32	$88.32
Plainview, TX	1	$53.34	$53.34
Stephenville, TX	1	$284.70	$284.70
Temple, TX	1	$33.00	$33.00

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.

Free T4 (free thyroxine) thyroid blood test in other states

Median cash price across the state's hospitals.