0C7S4
| Pos | Category | Selected Element & Definition |
|---|---|---|
| 0 | Section |
Medical and Surgical
|
| C | Body System |
Mouth and Throat
|
| 7 | Operation |
Dilation
Expanding an orifice or the lumen of a tubular body part
|
| S | Body Part |
Larynx
|
| 4 | Approach |
Percutaneous Endoscopic
|