Other type of myocardial infarction
- I21.A should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2025 edition of ICD-10-CM I21.A became effective on October 1, 2024.
- This is the American ICD-10-CM version of I21.A – other international versions of ICD-10 I21.A may differ.
The following code(s) above I21.A contain annotation back-references
that may be applicable to I21.A:
- I00-I99 Diseases of the circulatory system
- I20-I25 Ischemic heart diseases
- I21 Acute myocardial infarction
Code History
- 2018 (effective 10/1/2017): New code
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change
- 2025 (effective 10/1/2024): No change