Lab tests CPT 85610 Outpatient

Prothrombin time (PT/INR) clotting test in Nashville-Davidson--Murfreesboro--Franklin, TN

In Nashville-Davidson--Murfreesboro--Franklin, TN, 3 hospitals list a cash price for Prothrombin time (PT/INR) clotting test: from $9.66 to $52.58, with a median of $41.28. The lowest listed price is at Saint Thomas West Hospital.

Cash prices at 3 facilities across 3 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 Oct 1, 2025 and Oct 1, 2025.

Lowest$9.66Saint Thomas West Hospital
Median$41.28half pay less
Highest$52.58in this market
Difference5.4×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 Nashville-Davidson--Murfreesboro--Franklin, TN.

median
Lowest $9.66Highest $52.58

Hospitals, cheapest first

HospitalCash price List priceOff listFile date
Saint Thomas West Hospital lowest Harding Pk Nashville, TN PROTHROMBIN TIME $9.66 $32.20 70%
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Saint Thomas Rutherford Hospital Murfreesboro, TN PROTHROMBIN TIME $9.66 $32.20 70%
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Saint Thomas Rutherford Hospital Murfreesboro, TN PROTHROMBIN TIME $9.66 $32.20 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN PROTHROMBIN TIME $9.66 $32.20 70%
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Vanderbilt Wilson County Hospital Lebanon, TN PROTHROMBIN TIME $19.72 $68.00 71% Oct 1, 2025
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Vanderbilt Wilson County Hospital Lebanon, TN HC PROTHROMBIN TIME (PT) $20.30 $70.00 71% Oct 1, 2025
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Saint Thomas West Hospital Harding Pk Nashville, TN RAPID COAG POC FINGER STICK $21.87 $72.90 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN RAPID COAG POC FINGER STICK $21.87 $72.90 70%
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Saint Thomas Rutherford Hospital Murfreesboro, TN PROTHROMBIN TIME-PT $40.08 $133.60 70%
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Saint Thomas Rutherford Hospital Murfreesboro, TN INR $40.08 $133.60 70%
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Saint Thomas Rutherford Hospital Murfreesboro, TN INR $40.08 $133.60 70%
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Saint Thomas Rutherford Hospital Murfreesboro, TN PROTHROMBIN TIME-PT $40.08 $133.60 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN PROTIME (AS INR) $42.47 $141.55 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN PROTIME (AS INR) $42.47 $141.55 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN PT (INR) $46.70 $155.65 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN PT (INR) $46.70 $155.65 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN INR HEP ABSORBED $51.71 $172.35 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN INR HEP ABSORBED $51.71 $172.35 70%
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Saint Thomas Rutherford Hospital Murfreesboro, TN CL PROTMIE/INR $52.46 $174.85 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN CL PROTMIE/INR $52.46 $174.85 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN CL PROTMIE/INR $52.46 $174.85 70%
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Saint Thomas Rutherford Hospital Murfreesboro, TN CL PROTMIE/INR $52.46 $174.85 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN PROTHROMBIN (INR) POC $52.58 $175.25 70%
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Saint Thomas West Hospital Harding Pk Nashville, TN PROTHROMBIN (INR) POC $52.58 $175.25 70%
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Outpatient: lowest $9.66, median $41.28, highest $52.58 — a 5.4× difference within the same market.

As an inpatient, the same code is billed by 3 facilities here, median $40.08. 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.