In simple words: The doctor or nurse teaches the patient or caregiver how to use a device at home to check their blood clotting time (INR), which is important for people taking warfarin. They'll learn how to collect a blood sample, understand the results, and report them to their doctor.

This CPT code encompasses face-to-face instruction and training provided by a physician or qualified healthcare professional to a patient or caregiver on how to manage home international normalized ratio (INR) monitoring.This includes training on using and caring for the INR monitor, obtaining a blood sample, interpreting INR test results, reporting results, and making necessary dosage adjustments. The provider documents the patient's or caregiver's ability to perform these procedures.Note that this code does not include the provision of test materials or equipment; for those, use 99070 or an appropriate supply code.

Example 1: A patient newly prescribed warfarin requires training on how to use a home INR monitor. The physician provides a comprehensive training session covering blood sample collection techniques, interpreting the results, and reporting the data. The physician documents the patient's proficiency., A caregiver needs instruction on using a home INR device for their elderly parent on warfarin. The nurse practitioner conducts a detailed teaching session, demonstrating proper technique and addressing any questions or concerns. The caregiver successfully performs a sample test under supervision, demonstrating competency., A patient who has been managing their INR at home for a year has difficulty interpreting new results and requires additional teaching on potential problems and how to react appropriately. The physician addresses their concerns and clarifies the reporting procedures, documenting the refresher training.

Documentation should include: patient or caregiver identification, date of service, details of the training session (including methods used), confirmation of the patient/caregiver's understanding, documentation of the patient's/caregiver's successful demonstration of the procedure, and any modifications or special instructions given.

** Always refer to the most up-to-date CPT manual and your payer's specific guidelines for complete and accurate coding.Remember that the provision of test materials and equipment are not included in this code.