I21.29 is a billable/specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: ST elevation (STEMI) myocardial infarction involving other sites.
Inclusion term
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
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code