The Torah in Parashat Emor (Vayikra 21:11) commands the Kohen Gadol, “Lo Yitama” – that he may not come in contact with a human corpse, not even the remains of an immediate family member. The Sefer Ha’hinuch lists this command as a separate prohibition from the previous command in this verse – “Ve’al Kol Nafshot Met Lo Yabo,” which forbids a Kohen from entering a tent or building where a human corpse is present. That command prohibits a Kohen from exposing himself to “Tum’at Ohel” – the specific form of impurity caused by being under the same roof as a human corpse – whereas the prohibition of “Lo Yitama” forbids exposure to other forms of “Tum’at Met” (the impurity caused by contact with a corpse), such as directly touching a corpse. The Torah here speaks of a Kohen Gadol, but the Gemara derives the application of these prohibitions also to ordinary Kohanim. The Sefer Ha’hinuch explains that since this application to ordinary Kohanim is not made explicit in the Torah, but is rather extrapolated through a “Gezera Shava” (textual association between a Kohen Gadol and ordinary Kohanim), only the commands relevant to the Kohen Gadol should be listed as Biblical commands. The Rambam established that only commands issued explicitly by the Torah should be counted among the 613 Biblical commands, whereas laws inferred by the Sages from textual nuances should not. Therefore, only the commands as they apply to a Kohen Gadol are listed among the 613 Torah commands. However, an earlier command (“Le’nefesh Lo Yitama Be’amav”) issues the general prohibition against all Kohanim from exposing themselves from “Tum’at Met.” This command applies to Kohanim Gedolim in the times of the Bet Ha’mikdash (as only then were there Kohanim Gedolim), and in all places, both in Eretz Yisrael and outside the land. A Kohen Gadol who comes in contact with a human corpse, even the remains of an immediate family member, has violated this command and is liable to Malkut.