ICD-10-CM Diagnosis Code (2025)
Official Description for I22.9
Subsequent ST elevation (STEMI) myocardial infarction of unspecified site
Coding Notes & Guidelines for I22.9
Inclusion Terms
- Subsequent acute myocardial infarction of unspecified site
- Subsequent myocardial infarction (acute) NOS
Parent Code (Less Specific):
About ICD-10-CM Code I22.9 (Subsequent ST elevation)
ICD-10-CM code I22.9 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 I22.9 became effective on October 1, 2024.
This page provides detailed information about I22.9 - Subsequent ST elevation (STEMI) myocardial infarction of unspecified site. 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 Subsequent ST elevation.