Free T4 (thyroid) test at University of Illinois Hospital and Clinics
CPT 84439 · Chicago, IL
These are University of Illinois Hospital and Clinics's own posted figures from its standard-charges file dated April 1, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 40 Illinois hospitals we index that post a cash price for this service: lowest $9.00, median $107.74, highest $347.00. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Humboldt Park Health Chicago, IL | 1.5 mi | $74.97 | $267.75 | 2026-09-29 |
| Mt Sinai Hospital Medical Center Chicago, IL | 2.5 mi | $133.53 | $190.75 | 2026-09-22 |
| Northwestern Memorial Hospital Chicago, IL | 3.9 mi | $121.10 | $173.00 | 2026-04-01 |
| Ann & Robert H Lurie Childrens Hospital of Chicago Chicago, IL | 3.9 mi | $201.60 | $288.00 | 2026-09-01 |
| Advocate Illinois Masonic Medical Center Chicago, IL | 4.5 mi | $65.00 | $130.00 | 2025-11-04 |
| Presence Saint Joseph Hospital - Chicago Chicago, IL | 4.5 mi | $34.98 | $106.00 | 2026-01-01 |
| West Suburban Medical Center Oak Park, IL | 5.3 mi | $125.24 | $368.36 | 2025-03-17 |
| Swedish Hospital Chicago, IL | 6.4 mi | $177.00 | $177.00 | 2026-04-01 |
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 |
|---|---|---|---|---|
| HC Assay of Free Thyroxine - T4 Free line 42732 | both | $119.10 | $397.00 | $24.88 – $337.45 |
| HC Assay of Free Thyroxine - T4 Free line 42733 | inpatient | $119.10 | $397.00 | $24.88 – $189.37 |
| HC Assay of Free Thyroxine - T4 Free line 42734 | outpatient | $119.10 | $397.00 | $8.83 – $24.88 |
| HC Ft4 by Equil Dialysis line 48642 | both | $48.00 | $160.00 | $24.88 – $136.00 |
| HC Ft4 by Equil Dialysis line 48643 | inpatient | $48.00 | $160.00 | $24.88 – $76.32 |
| HC Ft4 by Equil Dialysis line 48644 | outpatient | $48.00 | $160.00 | $8.83 – $24.88 |
| HC Assay of Free Thyroxine - T4 Free line 153960 | both | $14.40 | $48.00 | $3.50 – $48.00 |
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 University of Illinois Hospital and Clinics prices