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
you can contact the irs directly at 1 800 829 1040 for personal taxes and 1 800 829 4933 for business taxes for information regarding the overpayment you can also call our automated customer service center toll free at 1 888 658 5465 tty 711 and select english or spanish then options 7 and 2