In simple words: This code covers your doctor's review and management of your at-home blood clotting tests (INR) if you have a mechanical heart valve, irregular heartbeat (atrial fibrillation), or blood clots in your veins (venous thromboembolism) and meet Medicare's requirements. It includes the review of four tests done at home, no more than once a week.

This code covers the physician's review, interpretation, and patient management of at-home international normalized ratio (INR) monitoring for patients diagnosed with mechanical heart valves, chronic atrial fibrillation, or venous thromboembolism, provided they meet the Medicare coverage criteria. The service includes the review and interpretation of results from four INR tests, which cannot be performed more frequently than once a week. The date of service is the date of the fourth test's interpretation.

Example 1: A patient with a mechanical heart valve uses a home INR monitor weekly and transmits the results to their physician. After four tests, the physician reviews the data, adjusts the warfarin dosage as necessary, and bills for G0250., A patient with chronic atrial fibrillation is on long-term anticoagulation therapy. They perform at-home INR testing and share the results with their doctor through an online portal. After receiving four weeks of readings, the physician evaluates them and makes necessary treatment modifications, billing for G0250., A patient with venous thromboembolism who meets Medicare's criteria uses a home INR monitoring device. After completing the fourth test in a four-week period, they send the results to their physician. The physician assesses the results to manage the patient's medication and bills using G0250.

Documentation should include the patient's diagnosis, Medicare coverage criteria confirmation, dates and results of the four INR tests, interpretation of the results, and any changes made to the treatment plan.