Lab tests CPT 85610 Outpatient

Prothrombin time (PT/INR) clotting test in Grand Rapids-Wyoming-Kentwood, MI

In Grand Rapids-Wyoming-Kentwood, MI, 4 hospitals list a cash price for Prothrombin time (PT/INR) clotting test: from $21.00 to $34.00, with a median of $21.00. The lowest listed price is at Corewell Health Butterworth Hospital.

Cash prices at 4 facilities across 4 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 — and —.

Lowest$21.00Corewell Health Butterworth Hospital
Median$21.00half pay less
Highest$34.00in this market
Difference1.6×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 Grand Rapids-Wyoming-Kentwood, MI.

median
Lowest $21.00Highest $34.00

Hospitals, cheapest first

HospitalCash price List priceOff listFile date
Corewell Health Butterworth Hospital lowest Grand Rapids, MI Hc Split Protime $21.00 $21.00
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Corewell Health Butterworth Hospital Grand Rapids, MI Hc Protime $21.00 $21.00
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Corewell Health Butterworth Hospital Grand Rapids, MI Hc Poc Coaguchek Inr $21.00 $21.00
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Corewell Health Butterworth Hospital Grand Rapids, MI Hc Split Protime $21.00 $21.00
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Corewell Health Butterworth Hospital Grand Rapids, MI Hc Protime $21.00 $21.00
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Corewell Health Butterworth Hospital Grand Rapids, MI Hc Poc Coaguchek Inr $21.00 $21.00
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Corewell Health Zeeland Community Hospital Zeeland, MI Hc Split Protime $21.00 $21.00
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Corewell Health Blodgett Hospital East Grand Rapids, MI Hc Protime $21.00 $21.00
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Corewell Health Blodgett Hospital East Grand Rapids, MI Hc Poc Coaguchek Inr $21.00 $21.00
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Corewell Health Zeeland Community Hospital Zeeland, MI Hc Poc Coaguchek Inr $21.00 $21.00
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Corewell Health Greenville Hospital Greenville, MI Hc Split Protime $21.00 $21.00
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Corewell Health Greenville Hospital Greenville, MI Hc Poc Coaguchek Inr $21.00 $21.00
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Corewell Health Blodgett Hospital East Grand Rapids, MI Hc Split Protime $21.00 $21.00
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Corewell Health Zeeland Community Hospital Zeeland, MI Hc Protime $34.00 $34.00
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Corewell Health Greenville Hospital Greenville, MI Hc Protime $34.00 $34.00
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Outpatient: lowest $21.00, median $21.00, highest $34.00 — a 1.6× difference within the same market.

As an inpatient, the same code is billed by 5 facilities here, median $21.00. 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.