Lab tests CPT 85610 Outpatient

Prothrombin time (PT/INR) clotting test in Green Bay, WI

In Green Bay, WI, 5 hospitals list a cash price for Prothrombin time (PT/INR) clotting test: from $12.50 to $65.34, with a median of $31.68. The lowest listed price is at Bellin Memorial Health Inc.

Cash prices at 5 facilities across 2 cities for code 85610, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Nov 21, 2025 and Jun 27, 2026.

Lowest$12.50Bellin Memorial Health Inc
Median$31.68half pay less
Highest$65.34in this market
Difference5.2×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 Green Bay, WI.

median
Lowest $12.50Highest $65.34

Hospitals, cheapest first

HospitalCash price List priceOff listFile date
Bellin Memorial Health Inc lowest Green Bay, WI PROTHROMBIN TIME $12.50 $27.00 54% Jun 27, 2026
source file
Bellin Memorial Health Inc Green Bay, WI PROTHROMBIN TIME, WHOLE BLOOD $12.50 $27.00 54% Jun 27, 2026
source file
Aurora BayCare Medical Center Green Bay, WI POC PROTHROMBIN TIME $27.50 $55.00 50% Nov 21, 2025
source file
St Marys Hospital Medical Center of Green Bay INC Hospital Sisters Green Bay, WI HC PROTHROMBIN TIME (PT) $31.68 $48.00 34%
source file
St Clare Memorial Hospital Inc Oconto Falls, WI HC PROTHROMBIN TIME (PT) $31.68 $48.00 34%
source file
St Vincent Hospital of the Hospital Sisters of the Third Order of St Francis Green Bay, WI PROTHROMBIN TIME $31.68 $48.00 34%
source file
Aurora BayCare Medical Center Green Bay, WI PROTHROMBIN TIME $35.00 $70.00 50% Nov 21, 2025
source file
St Clare Memorial Hospital Inc Oconto Falls, WI HC PROTHROMBIN TIME (PT)-PRV 72 HR $65.34 $99.00 34%
source file

Outpatient: lowest $12.50, median $31.68, highest $65.34 — a 5.2× difference within the same market.

As an inpatient, the same code is billed by 5 facilities here, median $31.68. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.

What it is

The prothrombin time (PT) test measures how long it takes blood to clot, and is reported with the INR, a standardized number. It is used to monitor warfarin and to check clotting before surgery or with liver disease.

What the price covers

The price usually covers the PT and INR result. The blood draw is often a separate charge; a fingerstick home or clinic INR check may be billed differently.