(a) If an adult patient of a home and community support services agency or in a hospital or nursing home, or an adult inmate of a county or municipal jail, is comatose, incapacitated, or otherwise mentally or physically incapable of communication and, according to reasonable medical judgment, is in need of medical treatment, the attending physician shall describe the:
(1) patient’s comatose state, incapacity, or other mental or physical inability to communicate in the patient’s medical record; and
(2) proposed medical treatment in the patient’s medical record.
(b) The attending physician shall make a reasonably diligent effort to contact or cause to be contacted the persons eligible to serve as surrogate decision-makers. Efforts to contact those persons shall be recorded in detail in the patient’s medical record.

(c) If a surrogate decision-maker consents to medical treatment on behalf of the patient, the attending physician shall record the date and time of the consent and sign the patient’s medical record. The surrogate decision-maker shall countersign the patient’s medical record or execute an informed consent form.
(d) A surrogate decision-maker’s consent to medical treatment that is not made in person shall be reduced to writing in the patient’s medical record, signed by the home and community support services agency, hospital, or nursing home staff member receiving the consent, and countersigned in the patient’s medical record or on an informed consent form by the surrogate decision-maker as soon as possible.