tci E/M Coding Alert - 2014 Issue 9

Reader Question: Break Up 99363 and 99364 in Anticoagulant Management

Question: We have a patient that comes into the office and requires anticoagulant management and is taking warfarin. Should I be using 99363 or 99364? Nebraska Subscriber Answer: You would use 99363 (Anticoagulant management for an outpatient taking warfarin, physician review and interpretation of International Normalized Ratio [INR] testing, patient instructions, dosage adjustment [as needed], and ordering of additional tests; initial 90 days of therapy [must include a minimum of 8 INR measurements]) during the initial 90 days of treatment and 99364 (Anticoagulant management for an outpatient taking warfarin, physician review and interpretation of International Normalized Ratio [INR] testing...

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