ICD-10-CM > I00-I99 > I30-I5A > I50 > I50.8 > I50.81 I50.81 Right heart failure Non-Billable/Non-Specific Applicable To Right ventricular failure Codes I50.810Right heart failure, unspecifiedI50.811Acute right heart failureI50.812Chronic right heart failureI50.813Acute on chronic right heart failureI50.814Right heart failure due to left heart failure