09BN4
| Pos | Category | Selected Element & Definition |
|---|---|---|
| 0 | Section |
Medical and Surgical
|
| 9 | Body System |
Ear, Nose, Sinus
|
| B | Operation |
Excision
Cutting out or off, without replacement, a portion of a body part
|
| N | Body Part |
Nasopharynx
|
| 4 | Approach |
Percutaneous Endoscopic
|