Lab tests CPT 84480 Inpatient — admitted to hospital

Total T3 test cost in Ann Arbor, MI — inpatient

In Ann Arbor, MI, 3 hospitals list a cash price for total triiodothyronine (T3) blood test as an inpatient: from $36.40 to $74.80, with a median of $43.75. The lowest listed price is at St Joseph Mercy Chelsea — $7.35 less than the median here. Across Michigan, the median is $48.10 at 79 hospitals.

Cash prices at 3 facilities across 3 cities for code 84480, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Mar 31, 2026 and Mar 31, 2026.

Lowest$36.40St Joseph Mercy Chelsea
Median$43.75half of hospitals charge less
Highest$74.80in this market
Difference2.1×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 Ann Arbor, MI.

median
Lowest $36.40Highest $74.80

Hospitals, cheapest first

HospitalCash priceList priceInsurers payOff list
St Joseph Mercy Chelsea lowest Chelsea, MI · (734) 475-3911 HC Warde T3 (Triiodothyronine) Total File of Mar 31, 2026 · source file $36.40 $56.00 $7.75–$56.00 35%
Forest Health Medical Center Ypsilanti, MI · (734) 547-4700 T3 TOTAL source file $43.75 $43.75 $14.18–$30.63 —
St Joseph Mercy Chelsea Chelsea, MI · (734) 475-3911 HC T3 (Triiodothyronine) Total File of Mar 31, 2026 · source file $44.20 $68.00 $7.75–$68.00 35%
University of Michigan Health Ann Arbor, MI · (734) 764-1505 HC-Lab-T3 Total source file $74.80 $187.00 $80.41–$198.76 60%
Hospital The hospital that published the price, its city and the line exactly as written in its price file.
Cash price The hospital's own price for a patient paying without insurance (“discounted cash” in its price file). Hospitals must publish it under federal law, 45 CFR 180.50. Call to confirm it before booking. More
List price The hospital's full chargemaster price (“gross charge”) before any discount. Almost nobody pays it; the gap to the cash price shows what the self-pay discount is worth. More
Insurers pay The lowest and highest rates this hospital has agreed with insurance plans for the same item, from its price file. If the cash price is below what your plan pays and you have not met your deductible, paying cash can cost you less. More
Off list How much lower the cash price is than the list price.
No cash discount This line's cash price equals the hospital's full list price. Many hospitals still reduce bills for uninsured patients: ask the billing office for its self-pay discount in writing. More

Inpatient: lowest $36.40, median $43.75, highest $74.80 — a 2.1× difference within the same market.

As an outpatient, the same code is billed by 3 facilities here, median $43.75 — that is the price to compare if you are not being admitted.

Cash or insurance?

At 2 of 3 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is 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 total T3 test measures the thyroid hormone triiodothyronine. It is used 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.

1 row held back from this comparison

It is priced below $1 or below a tenth of the national median for code 84480 ($83.70). 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.

HospitalCash priceFile
University of Michigan Health Ann Arbor, MIHC-Lab-Thyroid Cascade Rflx T3 Total $5.20 file
File Link to the hospital's own price file.