Free T4 test cost in Grand Rapids, MI — inpatient
In Grand Rapids-Wyoming-Kentwood, MI, 5 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test as an inpatient: from $27.00 to $69.00, with a median of $37.00. The lowest listed price is at Corewell Health Blodgett Hospital and 1 other hospital — $10.00 less than the median here. Across Michigan, the median is $37.00 at 61 hospitals.
Cash prices at 5 facilities across 4 cities for code 84439, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between — and —.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Grand Rapids-Wyoming-Kentwood, MI.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Corewell Health Blodgett Hospital lowest East Grand Rapids, MI Hc Free T4 | $27.00 | $27.00 | — | — | — source file |
| Corewell Health Butterworth Hospital lowest Grand Rapids, MI · (616) 391-1774 Hc Free T4 | $27.00 | $27.00 | — | — | — source file |
| Corewell Health Butterworth Hospital lowest Grand Rapids, MI · (616) 391-1774 Hc Free T4 | $27.00 | $27.00 | — | — | — source file |
| Corewell Health Zeeland Community Hospital Zeeland, MI · (616) 772-4644 Hc Free T4 | $37.00 | $37.00 | — | — | — source file |
| Corewell Health Greenville Hospital Greenville, MI · (616) 754-4691 Hc Free T4 | $37.00 | $37.00 | — | — | — source file |
| Mary Free Bed Rehabilitation Hospital Grand Rapids, MI HCHG FREE THYROXINE (FT4) | $69.00 | $69.00 | $43.57–$66.03 | — | — source file |
Inpatient: lowest $27.00, median $37.00, highest $69.00 — a 2.6× difference within the same market.
As an outpatient, the same code is billed by 4 facilities here, median $32.00 — 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 not below the highest rate a health plan has negotiated. 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.