ICD-10-CM · Chapter 9
I23..1 Atrial septal defect as current complication following acute myocardial infarction
← I23 — Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)
Chapter 9: I00-I99
Excludes 1 (cannot be coded together)
- acquired atrial septal defect not specified as current complication following acute myocardial infarction (I51.0)
Last reviewed: September 2026