Question: What are the new ICD10 2018 heart failure codes for acute on chronic right heart failure, acute right heart failure, and chronic right heart failure, and what inclusion terms will we need to know? Alaska Subscriber Answer: The new ICD-10 2018 code for acute on chronic right heart failure is I50.813 (Acute on chronic right heart failure). The new inclusion terms include the following: For acute right heart failure, you will look to I50.811 (Acute right heart failure). The inclusion terms include: For chronic right heart failure, you will choose I50.812 (Chronic right heart failure). The inclusion terms for this code are: