Free T4 (thyroid) test at Mercy Hospital St. Louis
CPT 84439 · Saint Louis, MO
These are Mercy Hospital St. Louis's own posted figures from its standard-charges file dated June 4, 2026. They are not a quote. Source: the hospital's file · its price transparency page.
Across 14 Missouri hospitals we index that post a cash price for this service: lowest $21.65, median $46.25, highest $159.60. See every hospital.
Nearby hospitals, same service
| Hospital | Distance | Cash price | Gross charge | File date |
|---|---|---|---|---|
| Barnes-Jewish West County Hospital Creve Coeur, MO | 0.0 mi | $44.40 | $74.00 | 2025-12-15 |
| Missouri Baptist Medical Center Saint Louis, MO | 3.0 mi | $21.65 | $36.08 | 2025-12-15 |
| Ranken Jordan Pediatric Bridge Hospital Maryland Heights, MO | 4.9 mi | $40.10 | $50.12 | 2026-04-24 |
| Barnes Jewish Hospital Saint Louis, MO | 10.4 mi | $42.00 | $70.00 | 2025-12-15 |
| St. Louis Childrens Hospital Saint Louis, MO | 10.4 mi | $159.60 | $266.00 | 2025-12-15 |
| Mercy Hospital South Saint Louis, MO | 12.1 mi | $84.50 | $130.00 | 2026-06-10 |
| Christian Hospital Northeast Saint Louis, MO | 12.1 mi | $44.40 | $74.00 | 2025-12-15 |
| Barnes-Jewish St. Peters Hospital Saint Peters, MO | 13.0 mi | $44.40 | $74.00 | 2025-12-15 |
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 |
|---|---|---|---|---|
| T4 Thyroxine Free line 4465361 | outpatient | $48.10 | $74.00 | $8.12 – $20.30 |
| T4 Thyroxine Free line 4516917 | outpatient | $48.10 | $74.00 | $4.81 – $74.00 |
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 Mercy Hospital St. Louis prices