ICD-10-CM Diagnosis Code (2025)
Official Description for I21.A1
Myocardial infarction type 2
Coding Notes & Guidelines for I21.A1
Code First
- , if applicable, the underlying cause, such as:
- anemia (D50.0-D64.9)
- chronic obstructive pulmonary disease (J44.-)
- paroxysmal tachycardia (I47.0-I47.9)
- shock (R57.0-R57.9)
Inclusion Terms
- Myocardial infarction due to demand ischemia
- Myocardial infarction secondary to ischemic imbalance
Parent Code (Less Specific):
About ICD-10-CM Code I21.A1 (Myocardial infarction type 2)
ICD-10-CM code I21.A1 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM I21.A1 became effective on October 1, 2024.
This page provides detailed information about I21.A1 - Myocardial infarction type 2. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Myocardial infarction type 2.