AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2023 Issue 4; New/Revised ICD-10-CM Codes

Coronary Microvascular Dysfunction

New codes have been created to identify angina pectoris with coronary microvascular dysfunction (I20.81), other forms of angina pectoris (I20.89), myocardial infarction with coronary microvascular dysfunction (I21.B), acute coronary microvascular dysfunction (I24.81), other forms of acute ischemic heart disease (I24.89), and chronic coronary microvascular dysfunction (I25.85).Coronary microvascular dysfunction (also called small artery disease, small vessel disease or coronary MVD) is heart disease that affects the walls and inner lining of small coronary arteries that branch off the larger coronary arteries. In coronary MVD, damage to the inner walls of the blood vessels...

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