Unborn Victims of Violence Act of 2003 - Provides that: (1) any person who engages in conduct that violates specified provisions of the Federal criminal code, the Controlled Substances Act of 1970, or the Atomic Energy Act of 1954, or specified articles of the Uniform Code of Military Justice (conduct constituting certain Federal violent crimes), and thereby causes the death of, or bodily injury to, a child who is in utero, shall be guilty of a separate offense (but prohibits imposition of the death penalty for such offense); and (2) the punishment for that separate offense shall be the same as that provided under Federal law for that conduct had that injury or death occurred to the unborn child's mother.
Directs that if the person engaging in the conduct thereby intentionally kills or attempts to kill the unborn child, that person shall be punished as provided under the Federal criminal code for intentionally killing or attempting to kill a human being.
Bars prosecution under this Act: (1) for conduct relating to an abortion for which the consent of the pregnant woman has been obtained or for which such consent is implied by law in a medical emergency; (2) for conduct relating to any medical treatment of the pregnant woman or her unborn child; or (3) of any woman with respect to her unborn child.