"Living a mitzvah-centered life is the spiritual essence of being a Jew. Organ transplantation and donation were once strongly limited by Jewish law because they were experimental and endangered life, today these are essential, successful medical life-saving methods. Accordingly, organ donation has become a mitzvah chiyuvit, an obligatory mitzvah, fulfilling Judaism’s great mitzvah of pikuakh nefesh, that of saving a life. So long as it will not significantly risk your own life, surgical removal and donation of organs such as a lung or a kidney by a living donor is a mitzvah kiyumit, a praise-worthy but not obligatory mitzvah, since with all surgery there is some danger and distress to the donor."
The article goes on to say "Our tradition treats a cadaver as sacred space not to be viewed or invaded once the soul has moved on and can no longer animate that body in its own personal way. So can a Jewish person’s body really be used after death for medical reasons? Yes, to save a life – as in proving the facts in a murder investigation or to determine a devastating genetic disease pattern, or restore mental health to an extremely distraught family member, then autopsy is allowed. So, now that one can fulfill the mitzvah of saving a life via organ donation, Jewish legal experts reasoned, the primacy of the integrity of a body is most definitely trumped by the mitzvah of saving a life."
Read the full article.
“You Have the Power to Save Lives – Sign Your Donor Card & Tell Your Loved Ones of Your Decision”