The patient was burned on the neck by a campfire while on a camping trip 3 days ago. He comes to the ED complaining that the burn's blisters have opened and the wound is painful. Upon admission, the patient is noted to have a second-degree 10 cm burn on the side of his neck, with purulent drainage. The area around the burn is also noted to be swollen, red, and tender. After evaluation, the patient is admitted for wound care with IV antibiotics for severe cellulitis due to an infected burn. What is the sequencing and coding for these diagnoses?