09NT4
| Pos | Category | Selected Element & Definition |
|---|---|---|
| 0 | Section |
Medical and Surgical
|
| 9 | Body System |
Ear, Nose, Sinus
|
| N | Operation |
Release
Freeing a body part from an abnormal physical constraint by cutting or by the use of force
|
| T | Body Part |
Frontal Sinus, Left
|
| 4 | Approach |
Percutaneous Endoscopic
|