| Permitted value | Language | Designation | Definition |
|---|---|---|---|
| WHO Grading - Grade - G1 | EN | G1 | WHO Grading - Grade - G1 |
| WHO Grading - Grade - G2 | EN | G2 | WHO Grading - Grade - G2 |
| WHO Grading - Grade - G3 | EN | G3 | WHO Grading - Grade - G3 |
| WHO Grading - Grade - G4 | EN | G4 | WHO Grading - Grade - G4 |