Lab tests CPT 82140 Outpatient

Ammonia test cost in Tullahoma, TN

In Tullahoma-Manchester, TN, 2 hospitals list a cash price for ammonia blood test: from $20.30 to $133.60, with a median of $76.95. The lowest listed price is at Vanderbilt Tullahoma-Harton Hospital — $56.65 less than the median here. Across Tennessee, the median is $48.83 at 89 hospitals.

Cash prices at 2 facilities across 2 cities for code 82140, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Oct 1, 2025 and Oct 1, 2025.

Lowest$20.30Vanderbilt Tullahoma-Harton Hospital

Median$76.95half of hospitals charge less

Highest$133.60in this market

Difference6.6×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 Tullahoma-Manchester, TN.

median

Lowest $20.30Highest $133.60

Hospitals, cheapest first

Hospital	Cash price	List price	Insurers pay	Off list
Vanderbilt Tullahoma-Harton Hospital lowest Tullahoma, TN · (931) 393-3000 HC UR 24HR KIDNEY STONE PNL AMMONIA - (LTH) File of Oct 1, 2025 · source file	$20.30	$70.00	$13.81–$56.00	71%
Vanderbilt Tullahoma-Harton Hospital Tullahoma, TN · (931) 393-3000 HC AMMONIA BLOOD File of Oct 1, 2025 · source file	$43.50	$150.00	$13.81–$120.00	71%
Unity Medical Center Manchester, TN · (931) 728-6354 AMMONIA source file	$133.60	$167.00	$6.56–$30.76	20%

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.

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.

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.

Off list How much lower the cash price is than the list price.

Outpatient: lowest $20.30, median $76.95, highest $133.60 — a 6.6× difference within the same market.

As an inpatient, the same code is billed by 2 facilities here, median $76.95. 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 1 of 2 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

An ammonia test measures ammonia in the blood. It is used for confusion or drowsiness in people with liver disease and for some rare inherited disorders in newborns.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.