These services are provided to clients when medically necessary in an acute care hospital, chemical dependency hospital, or a free-standing psychiatric hospital. This level of detoxification is provided for clients whose withdrawal symptoms are sufficiently severe, requiring 24-hour inpatient care and medical monitoring. Services are medically monitored, delivered under physician approved policies, physician monitored procedures, and clinical protocols. Services include twenty-four (24) hour evaluation and withdrawal management with observation, monitoring, and medication treatment. Patients must be examined by a physician, physician assistant or nurse practitioner within 24 hours of admission with appropriate laboratory and toxicology tests.