The 184th prohibition is that we are forbidden from eating blood.

The source of this prohibition is G‑d's statement,1 "Do not eat any blood." This prohibition is repeated in Torah many times. It explains that one who transgresses intentionally receives kares, as it is written,2 "Whoever eats it shall receive kares." If it was transgressed accidentally, the person must bring a chatos offering.3

The details of this mitzvah are explained in the fifth chapter of tractate Krisus.