While not officially classified as a mental disorder, is being studied as a category for possible inclusions in future revisions of the dsm?

I Believe the answer is: Inclusion

There is a strong argument on how Suicide should be included in future DSM, because it most likely originated from overly pessimistic and wrong way of thinking that make the victims believe that they are worthless / inferior, or their life would somehow always be stucked in misery.