Lab tests CPT 82140 Inpatient — admitted to hospital

Ammonia test cost in Oshkosh, WI — inpatient

In Oshkosh-Neenah, WI, 2 hospitals list a cash price for ammonia blood test as an inpatient: from $72.50 to $84.29, with a median of $78.40. The lowest listed price is at Aurora Medical Center Oshkosh — $5.90 less than the median here. Across Wisconsin, the median is $89.76 at 97 hospitals.

Cash prices at 2 facilities across 2 cities for code 82140, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Nov 21, 2025 and Mar 24, 2026.

Lowest$72.50Aurora Medical Center Oshkosh

Median$78.40half of hospitals charge less

Highest$84.29in this market

Difference1.2×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 Oshkosh-Neenah, WI.

median

Lowest $72.50Highest $85.00

Hospitals, cheapest first

Hospital	Cash price	List price	Insurers pay	Off list
Aurora Medical Center Oshkosh lowest Oshkosh, WI · (920) 456-6000 SRDP AMMONIA URINE File of Nov 21, 2025 · source file	$72.50	$145.00	$87.00–$123.25	50%
Childrens Hospital of Wisconsin Fox Valley Neenah, WI · (920) 969-7900 HBC FV AMMONIA+1 more line at this price File of Mar 24, 2026 · source file	$84.29	$153.25	$107.28–$145.59	45%
Aurora Medical Center Oshkosh Oshkosh, WI · (920) 456-6000 AMMONIA File of Nov 21, 2025 · source file	$85.00	$170.00	$102.00–$144.50	50%

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.

Inpatient: lowest $72.50, median $78.40, highest $84.29 — a 1.2× difference within the same market.

As an outpatient, the same code is billed by 5 facilities here, median $59.42 — that is the price to compare if you are not being admitted.

Cash or insurance?

At 2 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 2 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

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.