ICD-10 diagnosis codes describing Coronary Spasm and Microvascular Dysfunction are:

I20.1 - Angina pectoris with documented spasm

I20.81 – Angina pectoris with coronary microvascular dysfunction
I21.B – Myocardial infarction with coronary microvascular dysfunction
I24.81 – Acute coronary microvascular dysfunction
I25.85 – Chronic coronary microvascular dysfunction