- I21.19 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM I21.19 became effective on October 1, 2022.
- This is the American ICD-10-CM version of I21.19 – other international versions of ICD-10 I21.19 may differ.
ICD-10-CM I21.19 is grouped within Diagnostic Related Group(s):
- 222 Cardiac defibrillator implant with cardiac catheterization with ami, hf or shock with mcc
- 223 Cardiac defibrillator implant with cardiac catheterization with ami, hf or shock without mcc
- 280 Acute myocardial infarction, discharged alive with mcc
- 281 Acute myocardial infarction, discharged alive with cc
- 282 Acute myocardial infarction, discharged alive without cc/mcc
- 283 Acute myocardial infarction, expired with mcc
- 284 Acute myocardial infarction, expired with cc
- 285 Acute myocardial infarction, expired without cc/mcc
Applicable To
- Acute transmural myocardial infarction of inferior wall
- Inferolateral transmural (Q wave) infarction (acute)
- Transmural (Q wave) infarction (acute) (of) diaphragmatic wall
- Transmural (Q wave) infarction (acute) (of) inferior (wall) NOS
Type 2 Excludes
- ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery (I21.21)
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 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
Diagnosis Index entries containing back-references to I21.19:
- inferior NEC (diaphragmatic) (inferolateral) (inferoposterior) (wall) > ST elevation (STEMI) I21.3
- coronary artery of inferior wall NEC > involving I21.09
- inferior NEC (diaphragmatic) (inferolateral) (inferoposterior) (Q wave) (wall) > transmural I21.9