Lab tests CPT 84439 Outpatient

Free T4 test cost in Salem, OR

In Salem, OR, 4 hospitals list a cash price for free T4 (free thyroxine) thyroid blood test: from $6.38 to $82.20, with a median of $46.64. The lowest listed price is at Legacy Silverton Medical Center — $40.26 less than the median here. Across Oregon, the median is $44.25 at 39 hospitals.

Cash prices at 4 facilities across 4 cities for code 84439, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Aug 6, 2026.

Lowest$6.38Legacy Silverton Medical Center
Median$46.64half pay less
Highest$82.20in this market
Difference12.9×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Salem, OR.

median
Lowest $6.38Highest $82.20

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Legacy Silverton Medical Center lowest Silverton, OR · (503) 873-1500 CHG ASSAY OF FREE THYROXINE $6.38 $9.82 — 35% Apr 1, 2026
source file
Legacy Silverton Medical Center Silverton, OR · (503) 873-1500 HC T4 FREE THYROXINE FREE $16.22 $24.96 — 35% Apr 1, 2026
source file
Legacy Silverton Medical Center Silverton, OR · (503) 873-1500 HC T4 FREE THYROXINE FREE $16.22 $24.96 — 35% Apr 1, 2026
source file
Legacy Silverton Medical Center Silverton, OR · (503) 873-1500 HC T4 FREE BY DIRECT DIALYSIS $21.45 $33.00 — 35% Apr 1, 2026
source file
Legacy Silverton Medical Center Silverton, OR · (503) 873-1500 HC T4 FREE BY DIRECT DIALYSIS $21.45 $33.00 — 35% Apr 1, 2026
source file
West Valley Hospital Dallas, OR · (503) 623-8301 HCHRG T4, FREE $46.64 $88.00 — 47% Apr 1, 2026
source file
Salem Hospital Salem, OR · (503) 561-5200 HCHRG T4, FREE $46.64 $88.00 — 47% Apr 1, 2026
source file
Salem Hospital Salem, OR · (503) 561-5200 HCHRG T4, FREE $46.64 $88.00 — 47% Apr 1, 2026
source file
West Valley Hospital Dallas, OR · (503) 623-8301 HCHRG T4, FREE $46.64 $88.00 — 47% Apr 1, 2026
source file
Santiam Memorial Hospital Stayton, OR · (503) 769-2175 Thyroxine (thyroid chemical), free $82.20 $82.20 $7.41–$78.09 — Aug 6, 2026
source file

Outpatient: lowest $6.38, median $46.64, highest $82.20 — a 12.9× difference within the same market.

As an inpatient, the same code is billed by 3 facilities here, median $46.64. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

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.