Look at, for example, the DonorAlliance website:
Use the terms Recover or Procure instead of Harvest, and Donated Organs and Tissues instead of Body Parts
While some of these organ donation terms may be used and accepted medically, they aren’t appropriate to use out of respect for the donor families, especially when referring to their loved one’s organs. We’ve heard feedback from donor families that terms such as “harvest” make them feel like their loved one is equated with a crop. Using terms like “recover,” “procure” and “donated organs and tissues” instead, helps loved ones and the general public understand that the entire donation process is respectful and that donors and their families are treated with the utmost care.