Free T3 test cost in Louisville, KY
In Louisville/Jefferson County, KY-IN, 7 hospitals list a cash price for Free T3 thyroid hormone test: from $37.66 to $212.10, with a median of $184.80. The lowest listed price is at Norton Healthcare Indiana Inc — $147.14 less than the median here. Across Kentucky, the median is $212.10 at 15 hospitals.
Cash prices at 7 facilities across 6 cities for code 84481, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Feb 11, 2026 and Sep 18, 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 Louisville/Jefferson County, KY-IN.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Norton Healthcare Indiana Inc lowest Jeffersonville, IN HB T3 FREE | $37.66 | $269.00 | $14.40–$235.38 | 86% | Jun 3, 2026 source file |
| Norton Hospitals INC Louisville, KY HB T3 FREE | $88.60 | $443.00 | $16.94–$367.69 | 80% | Feb 11, 2026 source file |
| Norton Hospitals INC Louisville, KY HB T3 FREE | $88.60 | $443.00 | $16.94–$367.69 | 80% | Feb 11, 2026 source file |
| Norton Hospitals INC Louisville, KY HB T3 FREE | $88.60 | $443.00 | $16.94–$376.55 | 80% | Feb 11, 2026 source file |
| Norton Hospitals INC Louisville, KY HB T3 FREE | $88.60 | $443.00 | $16.94–$367.69 | 80% | Feb 11, 2026 source file |
| Norton Hospitals INC Louisville, KY HB T3 FREE | $88.60 | $443.00 | $16.94–$367.69 | 80% | Feb 13, 2026 source file |
| Norton Hospitals INC Louisville, KY HB T3 FREE | $88.60 | $443.00 | $16.94–$367.69 | 80% | Feb 11, 2026 source file |
| Harrison County Hospital NW Corydon, IN Thyroid hormone, T3 measurement, free | $136.20 | $227.00 | $8.47–$204.30 | 40% | Jul 16, 2026 source file |
| St. Vincent Salem Hospital, Inc. Salem, IN TRIIODOTHYRONINE T3; FREE | $184.80 | $308.00 | $8.01–$38.62 | 40% | — source file |
| St. Vincent Salem Hospital, Inc. Salem, IN TRIIODOTHYRONINE T3; FREE | $184.80 | $308.00 | $8.01–$38.62 | 40% | — source file |
| Baptist Healthcare System INC La Grange, KY Thyroid hormone, T3 measurement, free | $212.10 | $282.80 | $14.40–$565.60 | 25% | Sep 15, 2026 source file |
| Baptist Healthcare System INC New Albany, IN Thyroid hormone, T3 measurement, free | $212.10 | $282.80 | $14.40–$424.20 | 25% | Sep 15, 2026 source file |
| Baptist Healthcare System Inc. Louisville, KY Thyroid hormone, T3 measurement, free | $212.10 | $282.80 | $10.16–$565.60 | 25% | Sep 18, 2026 source file |
Outpatient: lowest $37.66, median $184.80, highest $212.10 — a 5.6× difference within the same market.
As an inpatient, the same code is billed by 3 facilities here, median $88.60. 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 6 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 none is it 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.