1. The department of mental health shall develop guidelines for the screening and assessment of persons receiving services from the department that address the interaction between physical and mental health to ensure that all potential causes of changes in behavior or mental status caused by or associated with a medical condition are assessed.

2. The provisions of this section shall only apply to state-owned or -operated facilities and not to long-term care facilities licensed under chapter 198, hospitals licensed under chapter 197, or hospitals as defined in section 197.020.

3. The department of mental health shall promulgate rules to administer this section. Any rule or portion of a rule, as that term is defined in section 536.010, that is created under the authority delegated in this section shall become effective only if it complies with and is subject to all of the provisions of chapter 536 and, if applicable, section 536.028. This section and chapter 536 are nonseverable and if any of the powers vested with the general assembly pursuant to chapter 536 to review, to delay the effective date, or to disapprove and annul a rule are subsequently held unconstitutional, then the grant of rulemaking authority and any rule proposed or adopted after August 28, 2014, shall be invalid and void.