For the purposes of this article, “cognitive impairment” means a substantial disorder of thought, mood, perception, orientation, or memory that grossly impairs judgement, behavior, or the ability to live independently or provide self-care, and includes but is not limited to:

1. (1) Alzheimer’s disease or other related dementias;
2. (2) An intellectual or developmental disability;
3. (3) A brain injury; or
4. (4) Another mental disability not related to substance abuse.