A person who engages in a suicide attempt and fails is '302d', involuntary committed to receive psychological services.
A person who signs themselves out of a hospital and who has been told that they will not survive if they do so is not '302d' because they are considered to be of sound mind.
In the case of a substance use disorder, an officially recognized disease in the DSM-5, the mind of such a patient does not think clearly. Therefore, they are incapable of making totally rational decisions and yet they do not receive a 302. Too many end up dead.
Dead is dead regardless of how they got there!
When are changes going to be made?