A 2-month-old male with diphtheria presented to the hospital with severe respiratory distress. The emergency department physician performed a pulse oximetry and discovered that the patient’s blood oxygen level was in the 60’s. The on-call physician ordered an emergency endotracheal intubation to restore oxygen flow to the infant. Once the airflow was established, care was transferred to the on-call pediatrician. What is the appropriate code for the emergency department procedure(s)?