Lab tests CPT 85610 Inpatient — admitted to hospital

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

In Grand Rapids-Wyoming-Kentwood, MI, 5 hospitals list a cash price for Prothrombin time (PT/INR) clotting test as an inpatient: from $21.00 to $38.00, with a median of $21.00. The lowest listed price is at Corewell Health Butterworth Hospital.

Cash prices at 5 facilities across 4 cities for code 85610, as an inpatient (admitted to hospital) . 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$38.00in this market
Difference1.8×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 $38.00

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 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 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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Mary Free Bed Rehabilitation Hospital Grand Rapids, MI HCHG PROTHROMBIN TIME 1 $33.00 $33.00
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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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Mary Free Bed Rehabilitation Hospital Grand Rapids, MI HC PROTHROMBIN TIME $38.00 $38.00
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Mary Free Bed Rehabilitation Hospital Grand Rapids, MI HC POCT PROTHROMBIN TIME $38.00 $38.00
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Mary Free Bed Rehabilitation Hospital Grand Rapids, MI HCHG PROTHROMBIN TIME $38.00 $38.00
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Inpatient: lowest $21.00, median $21.00, highest $38.00 — a 1.8× difference within the same market.

As an outpatient, the same code is billed by 4 facilities here, median $21.00 — that is the price to compare if you are not being admitted.

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.