Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes I00-I99 – Diseases of the circulatory system (I00-I99) > 2024 ICD-10-CM Codes I30-I5A – Other forms of heart disease (I30-I5A) > 2024 ICD-10-CM Codes I51 – Complications and ill-defined descriptions of heart disease (I51) > 2024 ICD-10-CM Codes I51.8 – Other ill-defined heart diseases (I51.8)