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
The IRS has a number of hotline or toll-free numbers that people can call, depending on the question. The number for the IRS tax help line, as of 2014, is 1-800-829-1040. The refund hot line, which is available 24/7, can be reached at 1-800-829-1954. Continue Reading.