0DN20
| Pos | Category | Selected Element & Definition |
|---|---|---|
| 0 | Section |
Medical and Surgical
|
| D | Body System |
Gastrointestinal System
|
| N | Operation |
Release
Freeing a body part from an abnormal physical constraint by cutting or by the use of force
|
| 2 | Body Part |
Esophagus, Middle
|
| 0 | Approach |
Open
|