Condition Description. Truncus arteriosus is an uncommon congenital heart defect where a baby is born with a single blood vessel (called a truncus) coming from the main pumping chambers of the heart (the ventricles) instead of two vessels (one from each ventricle).ondition Description. Truncus arteriosus is an uncommon congenital heart defect where a baby is born with a single blood vessel (called a truncus) coming from the main pumping chambers of the heart (the ventricles) instead of two vessels (one from each ventricle).
IRS Office Customer Service Phone Number Phone Number: 1 (800) 829-1040. Shortcut: N/A - Edit
Business Taxpayer IRS Phone Numberâ 1-800-829-4933 â This number again can be used to address some of the same examples given above with the individual taxpayer line. However, this is solely for businesses. However, if you are an exempt organization (non-profit), government entity, or admin for a retirement plan use the number below.