| Section | 0 | Medical and Surgical |
| Body System | 9 | Ear, Nose, Sinus |
| Operation | H | Insertion: Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part |
| Body Part D Inner Ear, Right E Inner Ear, Left |
Approach 0 Open 3 Percutaneous 4 Percutaneous Endoscopic |
Device 4 Hearing Device, Bone Conduction 5 Hearing Device, Single Channel Cochlear Prosthesis 6 Hearing Device, Multiple Channel Cochlear Prosthesis S Hearing Device |
Qualifier Z No Qualifier |
| Body Part N Nasopharynx |
Approach 7 Via Natural or Artificial Opening 8 Via Natural or Artificial Opening Endoscopic |
Device B Intraluminal Device, Airway |
Qualifier Z No Qualifier |