ICD-9-CM 414.11 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 414.11 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Abnormal balloon- or sac-like dilatation in the wall of coronary vessels. Most coronary aneurysms are due to coronary atherosclerosis, and the rest are due to inflammatory diseases, such as kawasaki disease