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
IRS's Best Toll-Free/800 Customer Phone Number This is IRS's best phone number, the real-time current wait on hold and tools for skipping right through those phone lines to get right to a IRS agent. This phone number is IRS's Best Phone Number because 881,844 customers like you used this contact information over the last 18 months and gave us feedback. Common problems addressed by the customer care unit that answers calls to 800-829-1040 include Refund Issue, Filing Issue, Tax Issue, Payment Issue, Transcripts Issue and other customer service issues.