Free T4 test cost in Truckee, CA — inpatient
In Truckee-Grass Valley, CA, 1 hospital lists a cash price for free T4 (free thyroxine) thyroid blood test as an inpatient: from $114.45 to $114.45, with a median of $114.45. Across California, the median is $68.12 at 161 hospitals.
Cash prices at 1 facility for code 84439, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Feb 28, 2026.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Sierra Nevada Memorial-Miners Hospital Grass Valley, CA · (530) 274-6000 THYROXINE FREE | $114.45 | $210.00 | $161.70–$205.80 | 46% | Feb 28, 2026 source file |
Inpatient: lowest $114.45, median $114.45, highest $114.45.
As an outpatient, the same code is billed by 2 facilities here, median $140.55 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is below the highest rate a health plan has negotiated and 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
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.
1 row held back from this comparison
It is priced below $1 or below a tenth of the national median for code 84439 ($67.56). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.
| Sierra Nevada Memorial-Miners Hospital Grass Valley, CARL-A-THYROXINE FREE | $4.39 | file |