Other specified forms of chronic ischemic heart disease

This code represents chronic ischemic heart conditions that are not otherwise classified as angina pectoris, old myocardial infarction, or other specific forms of ischemic heart disease. It encompasses long-standing heart problems due to reduced blood flow that don't fit into more precise categories.

Use this code for documented chronic ischemic heart disease when the specific type is not clearly defined or falls outside of other more specific ICD-9-CM codes. This may include conditions like chronic myocardial ischemia without infarction or unspecified chronic coronary artery disease. Documentation should clearly indicate a chronic ischemic process.

• Avoid using this code if a more specific ICD-9-CM code for chronic ischemic heart disease (e.g., angina, old MI) can be assigned.
• Ensure documentation supports a chronic condition; acute ischemic events would be coded differently.
• Always sequence this code after any acute cardiac events or more definitive diagnoses if applicable.