A hospital, related institution, or residential treatment center, as defined in § 19–301 of this article, shall allow a patient’s or resident’s domestic partner, the children of the patient’s or resident’s domestic partner, and the domestic partner of the patient’s or resident’s parent or child to visit, unless: No visitors are allowed; The facility reasonably determines that the presence of a particular visitor would endanger the health or safety of a patient, resident, or member of the facility staff; or The patient or resident or the patient’s or resident’s personal representative tells the facility staff that the patient or resident does not want a particular person to visit. This section does not prohibit a hospital, related institution, or residential treatment center from establishing reasonable restrictions on visitation, including restrictions on the hours of visitation and number of visitors.

In the case of a medical emergency, two adults shall be treated as domestic partners if one of the adults, in good faith, tells the emergency medical provider or hospital personnel that the adults are in a mutually interdependent relationship, for the following purposes only: Allowing one adult to accompany the ill or injured adult being transported to a hospital in an emergency vehicle; and Visitation with the ill or injured adult admitted to a hospital on an emergency basis on the same basis as a member of the ill or injured adult’s immediate family.

Notwithstanding any provisions of this title or any other provision of law, if a domestic partner has selected a health care agent in accordance with Title 5, Subtitle 6 of this article, that health care agent retains the authority to make any decisions for the domestic partner that are provided for in the selection of the health care agent until the health care agency has been revoked in accordance with the provisions of Title 5, Subtitle 6 of this article.