Tennessee Code Title 39. Criminal Offenses § 39-15-213

(1) “Abortion” means the use of any instrument, medicine, drug, or any other substance or device with intent to terminate the pregnancy of a woman known to be pregnant with intent other than to increase the probability of a live birth, to preserve the life or health of the child after live birth, to terminate an ectopic or molar pregnancy, or to remove a dead fetus;

(2) “Fertilization” means that point in time when a male human sperm penetrates the zona pellucida of a female human ovum;

(3) “Pregnant” means the human female reproductive condition of having a living unborn child within her body throughout the entire embryonic and fetal stages of the unborn child from fertilization until birth; and

(4) “Unborn child” means an individual living member of the species, homo sapiens, throughout the entire embryonic and fetal stages of the unborn child from fertilization until birth.

(c)(1) Notwithstanding subsection (b), a person who performs or attempts to perform an abortion does not commit the offense of criminal abortion if the abortion is performed or attempted by a licensed physician in a licensed hospital or ambulatory surgical treatment center and the following conditions are met:

(2) An abortion is not authorized under subdivision (c)(1)(A) and a greater risk to the pregnant woman does not exist under subdivision (c)(1)(B) if either determination is based upon a claim or a diagnosis that the pregnant woman will engage in conduct that would result in her death or the substantial and irreversible impairment of a major bodily function or for any reason relating to the pregnant woman's mental health.