Lab tests CPT 85610 Outpatient

Prothrombin time (PT/INR) clotting test in Michigan City-La Porte, IN

In Michigan City-La Porte, IN, 1 hospital lists a cash price for Prothrombin time (PT/INR) clotting test: from $4.95 to $35.69, with a median of $35.69.

Cash prices at 1 facility for code 85610, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 22, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.

Lowest$4.95La Porte Hospital Company LLC
Median$35.69half pay less
Highest$35.69in this market
Difference7.2×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 Michigan City-La Porte, IN.

median
Lowest $4.95Highest $35.69

Hospitals, cheapest first

HospitalCash price List priceOff listFile date
La Porte Hospital Company LLC lowest La Porte, IN Prothrombin and INR POC AMB $4.95 $15.00 67% Apr 1, 2026
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La Porte Hospital Company LLC La Porte, IN Prothrombin Time w/INR $35.69 $108.16 67% Apr 1, 2026
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La Porte Hospital Company LLC La Porte, IN .Protime w/INR POC $35.69 $108.16 67% Apr 1, 2026
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La Porte Hospital Company LLC La Porte, IN 85610 - L117079 PT $35.69 $108.16 67% Apr 1, 2026
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La Porte Hospital Company LLC La Porte, IN 85610 L117028 PROTHROMBIN $35.69 $108.16 67% Apr 1, 2026
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Outpatient: lowest $4.95, median $35.69, highest $35.69 — a 7.2× difference within the same market.

As an inpatient, the same code is billed by 1 facility here, median $58.41. 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.

1 row held back from this comparison

It is priced below $1 or below a tenth of the national median for code 85610 ($32.92). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.

La Porte Hospital Company LLC La Porte, IN.Protime INR POC $0.71 file