Free T3 test cost in New York, NY — inpatient
In New York-Newark-Jersey City, NY-NJ, 21 hospitals list a cash price for free T3 thyroid hormone test as an inpatient: from $16.94 to $273.24, with a median of $20.33. The lowest listed price is at Hmh Hospitals — $3.39 less than the median here. Across New York, the median is $78.54 at 64 hospitals.
Cash prices at 21 facilities across 15 cities for code 84481, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Oct 28, 2025 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in New York-Newark-Jersey City, NY-NJ.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Hmh Hospitals lowest Neptune City, NJ TRIIODOTHYRONINE FREE BY DIALYSIS MASS SPEC | $16.94 | $259.00 | $42.99–$259.00 | 93% | Dec 31, 2025 source file |
| Hmh Hospitals lowest Neptune City, NJ TRIIODOTHRONINE (T3) FREE BY EQUILIB DIALYSIS LC MS/MS ARUP | $16.94 | $259.00 | $42.99–$259.00 | 93% | Dec 31, 2025 source file |
| Hmh Hospitals lowest Neptune City, NJ T3 FREE BY DIRECT DIALYSIS | $16.94 | $550.00 | $91.30–$550.00 | 97% | Dec 31, 2025 source file |
| Hmh Hospitals lowest Neptune City, NJ T3 FREE QST | $16.94 | $259.00 | $42.99–$259.00 | 93% | Dec 31, 2025 source file |
| Hmh Hospitals lowest Neptune City, NJ ASSAY OF TRIIODOTHYRONINE T3 FREE | $16.94 | $55.00 | $9.13–$55.00 | 69% | Dec 31, 2025 source file |
| Chilton Medical Center Pompton Plains, NJ · (973) 831-5000 T3 Free | $19.48 | $44.00 | — | 56% | — source file |
| Morristown Medical Center Morristown, NJ · (973) 971-5450 T3 Free | $19.48 | $44.00 | — | 56% | — source file |
| CentraState Medical Center Freehold Township, NJ · (732) 294-7012 T3 Free | $19.48 | $452.00 | — | 96% | — source file |
| Newton Medical Center Newton, NJ · (973) 383-2121 T3 Free | $19.48 | $44.00 | — | 56% | — source file |
| Overlook Medical Center Summit, NJ · (908) 522-2000 T3 Free | $19.48 | $44.00 | — | 56% | — source file |
| The Valley Hospital Paramus, NJ · (201) 447-8000 Free T3 | $19.80 | $33.00 | $13.55–$54.04 | 40% | — source file |
| NYU Langone New York, NY · (212) 263-7300 HC FREE ASSAY (FT-3) | $20.33 | $246.61 | $9.09–$323.40 | 92% | Jan 1, 2026 source file |
| NYU Langone Brooklyn, NY HC FREE ASSAY (FT-3) | $20.33 | $246.61 | $9.09–$323.40 | 92% | Jan 1, 2026 source file |
| NYU Langone New York, NY · (212) 263-7300 HC FREE ASSAY (FT-3) | $20.33 | $246.61 | $9.09–$323.40 | 92% | Jan 1, 2026 source file |
| NYU Langone Mineola, NY HC FREE ASSAY (FT-3) | $20.33 | $323.40 | $9.09–$323.40 | 94% | Jan 1, 2026 source file |
| NYU Langone Hospital - Suffolk Patchogue, NY · (631) 654-7100 HC FREE ASSAY (FT-3) | $20.33 | $323.40 | $9.09–$323.40 | 94% | Jan 1, 2026 source file |
| Nassau University Medical Center East Meadow, NY · (516) 572-0123 T3; Free | $39.20 | $56.00 | — | 30% | Oct 28, 2025 source file |
| Nassau University Medical Center East Meadow, NY · (516) 572-0123 T3 Free | $39.20 | $56.00 | — | 30% | Oct 28, 2025 source file |
| Englewood Health Englewood, NJ · (201) 894-3000 Free T3 84481 | $56.80 | $568.00 | $44.42–$454.40 | 90% | Feb 2, 2026 source file |
| Maimonides Medical Center Brooklyn, NY · (718) 283-6000 FREE T3 | $90.00 | $90.00 | — | — | Apr 1, 2026 source file |
| HMH Carrier Behavioral Health Belle Mead, NJ T3 FREE QST | $103.60 | $259.00 | — | 60% | — source file |
| HMH Carrier Behavioral Health Belle Mead, NJ T3 FREE QST | $103.60 | $259.00 | — | 60% | — source file |
| Mount Sinai Morningside New York, NY HC T3 Free | $117.00 | $130.00 | — | 10% | Apr 1, 2026 source file |
| The Mount Sinai Hospital New York, NY · (212) 241-7981 HC T3 Free | $117.00 | $130.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Queens Long Island, NY HC T3 Free | $117.00 | $130.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Behavioral Health Center New York, NY HC T3 Free | $117.00 | $130.00 | — | 10% | Apr 1, 2026 source file |
| Mount Sinai Brooklyn Brooklyn, NY HC T3 Free | $117.00 | $130.00 | — | 10% | Apr 1, 2026 source file |
| New York Eye and Ear Infirmary of Mount Sinai New York, NY · (212) 979-4000 FREE ASSAY, T3, FREE | $273.24 | $303.60 | — | 10% | Apr 1, 2026 source file |
| New York Eye and Ear Infirmary of Mount Sinai New York, NY · (212) 979-4000 FREE T4 INDEX (T7) | $273.24 | $303.60 | — | 10% | Apr 1, 2026 source file |
| The Valley Hospital Paramus, NJ · (201) 447-8000 T3 Free Dialysis | $330.60 | $551.00 | $13.55–$468.35 | 40% | — source file |
Inpatient: lowest $16.94, median $20.33, highest $273.24 — a 16.1× difference within the same market.
As an outpatient, the same code is billed by 50 facilities here, median $20.07 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 7 of 7 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is 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.