As used in this article, "neglect" means the negligent treatment or the maltreatment of a child by a person responsible for the child's welfare under circumstances indicating harm or threatened harm to the child's health or welfare. The term includes both acts and omissions on the part of the responsible person.
(a)"Severe neglect" means the negligent failure of a person having the care or custody of a child to protect the child from severe malnutrition or medically diagnosed nonorganic failure to thrive. "Severe neglect" also means those situations of neglect where any person having the care or custody of a child willfully causes or permits the person or health of the child to be placed in a situation such that his or her person or health is endangered, as proscribed by Section 11165.3, including the intentional failure to provide adequate food, clothing, shelter, or medical care.
(b)"General neglect" means the negligent failure of a person having the care or custody of a child to provide adequate food, clothing, shelter, medical care, or supervision where no physical injury to the child has occurred.
For the purposes of this chapter, a child receiving treatment by spiritual means as provided in Section 16509.1 of the Welfare and Institutions Code or not receiving specified medical treatment for religious reasons, shall not for that reason alone be considered a neglected child. An informed and appropriate medical decision made by parent or guardian after consultation with a physician or physicians who have examined the minor does not constitute neglect.