Lab tests CPT 83090 Inpatient — admitted to hospital

Homocysteine test cost in Madison, WI — inpatient

In Madison, WI, 2 hospitals list a cash price for homocysteine blood test as an inpatient: from $118.30 to $153.60, with a median of $135.95. The lowest listed price is at Aspirus Divine Savior Hospital — $17.65 less than the median here. Across Wisconsin, the median is $118.30 at 71 hospitals.

Cash prices at 2 facilities across 2 cities for code 83090, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Jan 28, 2026 and Apr 1, 2026.

Lowest$118.30Aspirus Divine Savior Hospital
Median$135.95half pay less
Highest$153.60in this market
Difference1.3×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 Madison, WI.

median
Lowest $118.30Highest $208.36

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Aspirus Divine Savior Hospital lowest Portage, WI · (608) 742-4131 ASSAY OF HOMOCYSTEINE $118.30 $182.00 — 35% Apr 1, 2026
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Aspirus Divine Savior Hospital lowest Portage, WI · (608) 742-4131 Fac Assay of Homocystine $118.30 $182.00 — 35% Apr 1, 2026
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UnityPoint Health - Meriter Madison, WI · (608) 417-6210 ASSAY OF HOMOCYSTINE $153.60 $192.00 $10.75–$182.40 20% Jan 28, 2026
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UnityPoint Health - Meriter Madison, WI · (608) 417-6210 HC ASSAY OF HOMOCYSTINE $208.36 $260.44 $59.90–$247.42 20% Jan 28, 2026
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Inpatient: lowest $118.30, median $135.95, highest $153.60 — a 1.3× difference within the same market.

As an outpatient, the same code is billed by 2 facilities here, median $135.95 — 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 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

A homocysteine test measures an amino acid that rises with low vitamin B12 or folate and in some inherited conditions.

What the price covers

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