Lab tests CPT 84146 Inpatient — admitted to hospital

Prolactin test cost in Saginaw, MI — inpatient

In Saginaw, MI, 2 hospitals list a cash price for prolactin blood test as an inpatient: from $19.08 to $23.10, with a median of $21.09. The lowest listed price is at Covenant Medical Center — $2.01 less than the median here. Across Michigan, the median is $70.93 at 82 hospitals.

Cash prices at 2 facilities across 2 cities for code 84146, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between May 15, 2026 and May 15, 2026.

Lowest$19.08Covenant Medical Center
Median$21.09half pay less
Highest$23.10in 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 Saginaw, MI.

median
Lowest $19.08Highest $263.90

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Covenant Medical Center lowest Cooper Saginaw, MI HCHG PROLACTIN MACROADENOMA $19.08 $27.25 $12.26–$24.53 30% May 15, 2026
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Covenant Medical Center Saginaw, MI · (989) 583-6000 Assay of Prolactin $23.10 $33.00 $14.85–$34.83 30% May 15, 2026
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Covenant Medical Center Saginaw, MI · (989) 583-6000 HCHG PROLACTIN MACROADENOMA $42.82 $61.16 $27.52–$55.04 30% May 15, 2026
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Covenant Medical Center Saginaw, MI · (989) 583-6000 HCHG PROLACTIN $263.90 $377.00 $169.65–$339.30 30% May 15, 2026
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Covenant Medical Center Cooper Saginaw, MI HCHG PROLACTIN $263.90 $377.00 $169.65–$339.30 30% May 15, 2026
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Inpatient: lowest $19.08, median $21.09, highest $23.10 — a 1.2× difference within the same market.

As an outpatient, the same code is billed by 2 facilities here, median $30.95 — 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 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

Prolactin is a pituitary hormone that drives milk production. The test is ordered for irregular or absent periods, nipple discharge, infertility, low sex drive and suspected pituitary tumors.

What the price covers

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