Lab tests CPT 86765 Inpatient — admitted to hospital

Measles immunity test cost in Green Bay, WI — inpatient

In Green Bay, WI, 5 hospitals list a cash price for measles (rubeola) antibody test as an inpatient: from $37.50 to $89.10, with a median of $89.10. The lowest listed price is at Bellin Memorial Health — $51.60 less than the median here. Across Wisconsin, the median is $80.00 at 80 hospitals.

Cash prices at 5 facilities across 2 cities for code 86765, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Nov 21, 2025 and Jun 27, 2026.

Lowest$37.50Bellin Memorial Health
Median$89.10half pay less
Highest$89.10in this market
Difference2.4×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 Green Bay, WI.

median
Lowest $37.50Highest $89.10

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Bellin Memorial Health lowest Green Bay, WI · (920) 433-3500 ANTIBODY; RUBEOLA, IMMUNE STATUS $37.50 $81.00 $40.10–$72.90 54% Jun 27, 2026
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Bellin Memorial Health lowest Green Bay, WI · (920) 433-3500 ANTIBODY; RUBEOLA $37.50 $81.00 $40.10–$72.90 54% Jun 27, 2026
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Aurora BayCare Medical Center Green Bay, WI · (920) 288-8000 AB, RUBEOLA IGM $80.00 $160.00 $96.00–$136.00 50% Nov 21, 2025
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Aurora BayCare Medical Center Green Bay, WI · (920) 288-8000 AB, RUBEOLA IGG $80.00 $160.00 $96.00–$136.00 50% Nov 21, 2025
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St Marys Hospital Medical Center Green Bay, WI · (920) 498-4200 RUBEOLA ANTIBODY $89.10 $135.00 $12.88–$135.00 34% —
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St Clare Memorial Hospital Oconto Falls, WI · (920) 846-3444 RUBEOLA ANTIBODY $89.10 $135.00 $12.88–$135.00 34% —
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St Vincent Hospital of the Hospital Sisters of the Third Order of St Francis Green Bay, WI · (920) 433-0111 RUBEOLA ANTIBODY $89.10 $135.00 $12.88–$135.00 34% —
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Inpatient: lowest $37.50, median $89.10, highest $89.10 — a 2.4× difference within the same market.

As an outpatient, the same code is billed by 5 facilities here, median $89.10 — that is the price to compare if you are not being admitted.

Cash or insurance?

At 5 of 5 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

The measles antibody test shows immunity to measles, or a recent infection when the IgM type is measured. Adults check it during outbreaks, before travel, or for school and health care jobs.

What the price covers

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