ICD-10-CM Diagnosis Code (2025)
Official Description for I21.29
ST elevation (STEMI) myocardial infarction involving other sites
Coding Notes & Guidelines for I21.29
Inclusion Terms
- Acute transmural myocardial infarction of other sites
- Apical-lateral transmural (Q wave) infarction (acute)
- Basal-lateral transmural (Q wave) infarction (acute)
- High lateral transmural (Q wave) infarction (acute)
- Lateral (wall) NOS transmural (Q wave) infarction (acute)
- Posterior (true) transmural (Q wave) infarction (acute)
- Posterobasal transmural (Q wave) infarction (acute)
- Posterolateral transmural (Q wave) infarction (acute)
- Posteroseptal transmural (Q wave) infarction (acute)
- Septal transmural (Q wave) infarction (acute) NOS
Parent Code (Less Specific):
About ICD-10-CM Code I21.29 (ST elevation)
ICD-10-CM code I21.29 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 I21.29 became effective on October 1, 2024.
This page provides detailed information about I21.29 - ST elevation (STEMI) myocardial infarction involving other sites. 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 ST elevation.