I21.B

The ICD-10-CM code for myocardial infarction with coronary microvascular dysfnct is I21.B. The full clinical description is "Myocardial infarction with coronary microvascular dysfunction". I21.B is a billable/specific code that can be used on insurance claims and medical billing.

ICD-10-CM code I21.B represents “Myocardial infarction with coronary microvascular dysfunction”. It is classified under Chapter 9: Diseases of the Circulatory System and is a billable/specific code that can be used on a claim.

Yes, I21.B is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

I21.B is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).

Yes, when using I21.B, also report: code, if applicable, to identify:; exposure to environmental tobacco smoke (Z77.22); history of tobacco dependence (Z87.891); occupational exposure to environmental tobacco smoke (Z57.31); status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82); tobacco dependence (F17.-); tobacco use (Z72.0).

I21.B is linked to 3 UMLS Concept Unique Identifiers: C5819578, C5819182, C5819579. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like myocardial infarction with coronary microvascular dysfnct affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

There is no direct ICD-11 mapping available for I21.B in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.