Lab tests CPT 84450 Inpatient — admitted to hospital

AST liver test cost in Stockton, CA — inpatient

In Stockton-Lodi, CA, 1 hospital lists a cash price for AST (aspartate aminotransferase) enzyme test as an inpatient: from $45.36 to $45.36, with a median of $45.36. Across California, the median is $45.36 at 103 hospitals.

Cash prices at 1 facility for code 84450, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between — and —.

Lowest$45.36Kaiser Foundation Hospital - Manteca
Median$45.36half pay less
Highest$45.36in this market
Difference1.0×highest vs lowest

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Kaiser Foundation Hospital - Manteca Manteca, CA · (209) 825-3700 TRANSFERASE ASPARTATE AMINO AST SGOT $45.36 $81.00 $5.00–$15.00 44% —
source file

Inpatient: lowest $45.36, median $45.36, highest $45.36.

As an outpatient, the same code is billed by 1 facility here, median $45.36 — 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 not 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

AST is an enzyme found in the liver, muscles and heart. It is measured together with ALT to look for liver injury, and the ratio between them gives clues to the cause.

What the price covers

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