- CodeDescription
- 09N0 External Ear, Right
- 09N1 External Ear, Left
- 09N3 External Auditory Canal, Right
- 09N4 External Auditory Canal, Left
- 09N5 Middle Ear, Right
- 09N6 Middle Ear, Left
- 09N7 Tympanic Membrane, Right
- 09N8 Tympanic Membrane, Left
- 09N9 Auditory Ossicle, Right
- 09NA Auditory Ossicle, Left
- 09NB Mastoid Sinus, Right
- 09NC Mastoid Sinus, Left
- 09ND Inner Ear, Right
- 09NE Inner Ear, Left
- 09NF Eustachian Tube, Right
- 09NG Eustachian Tube, Left
- 09NK Nasal Mucosa and Soft Tissue
- 09NL Nasal Turbinate
- 09NM Nasal Septum
- 09NN Nasopharynx
- 09NP Accessory Sinus
- 09NQ Maxillary Sinus, Right
- 09NR Maxillary Sinus, Left
- 09NS Frontal Sinus, Right
- 09NT Frontal Sinus, Left
- 09NU Ethmoid Sinus, Right
- 09NV Ethmoid Sinus, Left
- 09NW Sphenoid Sinus, Right
- 09NX Sphenoid Sinus, Left