ICD-10-CM > I00-I99 > I20-I25 > I23 > I23.5 I23.5 Rupture of papillary muscle as current complication following acute myocardial infarction Billable/Specific Copy Code Copy Description Type 1 Excludes rupture of papillary muscle not specified as current complication following acute myocardial infarction (I51.2)