Abortion - As introduced, defines the terms "serious risk of substantial and irreversible impairment of a major bodily function" and "lethal fetal anomaly"; specifies that a physician does not commit the offense of criminal abortion if, under certain circumstances, the physician performs or attempts to perform an abortion to address a lethal fetal anomaly or a premature delivery of an unborn child with a lethal fetal anomaly. - Amends TCA Title 4; Title 29; Title 33; Title 37; Title 39; Title 40; Title 53; Title 56; Title 62; Title 63; Title 68 and Title 71.