(1) An authorized staff physician may order the admission of any person who is present at, or is presented at, an ICF/ID. Within twenty-four (24) hours, excluding weekends and holidays, of the admission under this section, the authorized staff physician ordering the admission of the person shall certify in the record of the individual that in the opinion of the physician, the individual should be involuntarily admitted.
(2) Any person who has been admitted to an ICF/ID under subsection (1) of this section shall be released from the ICF/ID within seventy-two (72) hours, excluding weekends and holidays, unless further detained under the applicable provisions of this chapter.