Lab tests CPT 84481 Inpatient — admitted to hospital

Free T3 test cost in Chattanooga, TN — inpatient

In Chattanooga, TN-GA, 1 hospital lists a cash price for free T3 thyroid hormone test as an inpatient: from $50.16 to $50.16, with a median of $50.16. Across Tennessee, the median is $51.70 at 44 hospitals.

Cash prices at 1 facility for code 84481, as an inpatient (admitted to hospital) . Collected Sep 22, 2026; the hospital files themselves were last updated between Jan 25, 2026 and Jan 25, 2026.

Lowest$50.16Erlanger Health
Median$50.16half pay less
Highest$50.16in this market
Difference1.0×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 Chattanooga, TN-GA.

median
Lowest $50.16Highest $50.16

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Erlanger Health lowest Chattanooga, TN · (423) 778-7000 HC Free T3 $50.16 $95.00 $29.45–$80.75 47% Jan 25, 2026
source file
Erlanger Health lowest Chattanooga, TN · (423) 778-7000 HC Pbc Free T3 $50.16 $95.00 $29.45–$80.75 47% Jan 25, 2026
source file

Inpatient: lowest $50.16, median $50.16, highest $50.16.

As an outpatient, the same code is billed by 1 facility here, median $14.78 — 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. 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.