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
Step 1, Call the toll-free IRS telephone number for individuals if you are calling about a personal tax matter. This number is 1-800-829-1040. The business hours are between 7:00 a.m. and 7:00 p.m. in your local time zone.[1]Step 2, Use the 1-800-829-3676 number for assistance completing your tax forms. This number is the quickest way to get in touch with a specialist trained to assist you in filling out your return forms. Business hours are 7:00 a.m to 7:00 p.m. local time, Monday through ...