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 also call the IRS at 1-800-829-1954, or 1-800-829-4477, or 1-800-829-1040 and inquire about your tax return status with an IRS a customer service representative. Note that the IRS only updates tax return statuses once a day during the week, usually between midnight and 6am.