Old myocardial infarction icd 10 code July 8, 2019 16 32 64 128 Old myocardial infarction icd 10 cm code Old healed myocardial infarction icd 10 code Acute subacute or old myocardial infarction icd 10 code Icd 10 code for old myocardial infarction unspecified Old myocardial infarction icd 10 Old mi icd 10