I23.1
ICD-10BillableAtrial septal defect as current complication following AMI
Official ICD-10-CM descriptor (FY2026)
Atrial septal defect as current complication following acute myocardial infarction
I23.1 is valid for submission on a claim — CMS flags it as a billable, specific code.
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- acquired atrial septal defect not specified as current complication following acute myocardial infarction (I51.0)
Related codes in I23
- I23.0Hemopericardium as current complication following AMI
- I23.2Ventricular septal defect as current comp following AMI
- I23.3Rupture of card wall w/o hemoperic as current comp fol AMI
- I23.4Rupture of chord tendne as current comp following AMI
- I23.5Rupture of papillary muscle as current comp following AMI
- I23.6Thombos of atrium/auric append/ventr as current comp fol AMI
- I23.7Postinfarction angina
- I23.8Oth current complications following AMI
Where this code sits
- Parent code
- I23
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.