I21.B is a billable/specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Myocardial infarction with coronary microvascular dysfunction.
Inclusion term
Myocardial infarction with coronary microvascular disease
Myocardial infarction with nonobstructive coronary arteries [MINOCA] with microvascular disease
Versions
2025
No changes
2024
New code