California Welfare & Institutions Code § 15610.57
Under California law, "Neglect" means either of the following:
1. The negligent failure of any person having the care or
custody of an elder or a dependent adult to exercise that
degree of care that a reasonable person in a like position
2. The negligent failure of an elder or dependent adult to
exercise that degree of self care that a reasonable person
in a like position would exercise.
3. Neglect includes, but is not limited to, all of the following:
A. Failure to assist in personal hygiene, or in the provision of
food, clothing, or shelter.
B. Failure to provide medical care for physical and mental
health needs. No person shall be deemed neglected or
abused for the sole reason that he or she voluntarily relies
on treatment by spiritual means through prayer alone in lieu
of medical treatment.
C. Failure to protect from health and safety hazards.
D. Failure to prevent malnutrition or dehydration.
4. Failure of an elder or dependent adult to satisfy the needs
specified in paragraphs (1) to (4), inclusive, for himself or
herself as a result of poor cognitive functioning, mental
limitation, substance abuse, or chronic poor health.