AAPC Certified Professional Coder (CPC) — Question 26

An elderly patient comes into the emergency department (ED) with shortness of breath. An ECG is performed The final diagnosis at discharge is impending myocardial infarction.
According to ICD-10-CM guidelines, how is this reported?

Answer options

• A. I20.0
• B. R06.02
• C. I20.0, R06.02
• D. I21.3, R06.02

Correct answer: A

Explanation

The correct code I20.0 represents unstable angina, which corresponds to the diagnosis of impending myocardial infarction. The other options are either unrelated codes or combinations that do not specifically indicate the diagnosis of impending myocardial infarction.