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
TeleTax: 1-800-829-4477 - Has recorded tax information and automated refund information. call this number if you just want to hear information and not talk to a person. IRS Business Assistance: 1-800-829-4933 - Call this number if you want to talk to an agent about your business, not your personal taxes.