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
To contact the IRS, call: Customer service â 800-829-1040; Lost IRS check â 800-829-1954; Refund status â 800-829-4477; Forms and publications â 800-829-3676; Questions about refunds and offsets to IRS liabilities â 800-829-1954; Taxpayer advocate service â 877-777-4778; To pay tax by credit card â Call any of these numbers: 888-972-9829