Lab tests CPT 85610 Inpatient — admitted to hospital

Prothrombin time (PT/INR) clotting test in San Diego-Chula Vista-Carlsbad, CA — inpatient

In San Diego-Chula Vista-Carlsbad, CA, 10 hospitals list a cash price for Prothrombin time (PT/INR) clotting test as an inpatient: from $8.53 to $123.75, with a median of $66.75. The lowest listed price is at Sharp Memorial Hospital.

Cash prices at 10 facilities across 6 cities for code 85610, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and May 29, 2026.

Lowest$8.53Sharp Memorial Hospital
Median$66.75half pay less
Highest$123.75in this market
Difference14.5×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 San Diego-Chula Vista-Carlsbad, CA.

median
Lowest $8.53Highest $123.75

Hospitals, cheapest first

HospitalCash price List priceOff listFile date
Sharp Memorial Hospital lowest San Diego, CA HC PROTHROMBIN TIME $8.53 $11.37 25%
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Sharp Coronado Hospital and Healthcare Center Coronado, CA HC PROTHROMBIN TIME $8.53 $11.37 25%
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Grossmont Hospital Corporation La Mesa, CA HC PROTHROMBIN TIME $8.53 $11.37 25%
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Sharp Chula Vista Medical Center Chula Vista, CA HC PROTHROMBIN TIME $8.53 $11.37 25%
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UC San Diego Medical Center San Diego, CA Blood Test, Clotting Time $50.60 $92.00 45% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rch Scrmer Hc-Prothrombin Time $66.75 $89.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rch Scren-Prothrombin Time $66.75 $89.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rch Scrlj-Prothrombin Time $66.75 $89.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rsp Pt - Prothrombin Time $66.75 $89.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rch Scrmer Cv-Lupus Anticoagulant Pt-Da $66.75 $89.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rch Scrmer Cv-Prothrombin Time $66.75 $89.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rch Scrmer Hc-Lupus Anticoagulant Pt-Da $66.75 $89.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rch Prothrombin Time $66.75 $89.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Scripps Nicu-Lupus Anticoagulant Pt-Da $66.75 $89.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Scripps Nicu-Prothrombin Time $66.75 $89.00 25% Apr 1, 2026
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Kaiser Foundation Hospital - San Diego - Clairemont Mesa San Diego, CA PROTHROMBIN TIME $95.16 $183.00 48%
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Kaiser Foundation Hospital - San Diego - Zion San Diego, CA PROTHROMBIN TIME $95.16 $183.00 48%
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Kaiser Foundation Hospital - San Marcos San Marcos, CA PROTHROMBIN TIME $95.16 $183.00 48%
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Sharp Chula Vista Medical Center Chula Vista, CA HC PROTHROMBIN TIME - PROTIME-INR $95.25 $127.00 25%
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Sharp Memorial Hospital San Diego, CA HC PROTHROMBIN TIME - PROTIME-INR $95.25 $127.00 25%
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Grossmont Hospital Corporation La Mesa, CA HC PROTHROMBIN TIME - PROTIME-INR $95.25 $127.00 25%
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Sharp Coronado Hospital and Healthcare Center Coronado, CA HC PROTHROMBIN TIME - PROTIME-INR $95.25 $127.00 25%
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Tri-City Medical Center Oceanside, CA Prothrombin Time and INR $99.36 $165.60 40% May 29, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rch Liv-Prothrombin Time $123.75 $165.00 25% Apr 1, 2026
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Rady Children's Hospital - San Diego San Diego, CA Rch Lab-Prothrombin Time $123.75 $165.00 25% Apr 1, 2026
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Inpatient: lowest $8.53, median $66.75, highest $123.75 — a 14.5× difference within the same market.

As an outpatient, the same code is billed by 11 facilities here, median $66.75 — 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.

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.

Tri-City Medical Center Oceanside, CAProthrombin Time (PT) LC $1.87 file