| Permitted value | Language | Designation | Definition |
|---|---|---|---|
| Stage - 0 | EN | 0 | UICC grading - Stage - 0 |
| Stage - I | EN | I | UICC grading - Stage - I |
| Stage - II A | EN | II A | UICC grading - Stage - II A |
| Stage - IIB | EN | IIB | UICC grading - Stage - IIB |
| Stage - IIIA | EN | IIIA | UICC grading - Stage - IIIA |
| Stage - IIIB | EN | IIIB | UICC grading - Stage - IIIB |
| Stage - IIIC | EN | IIIC | UICC grading - Stage - IIIC |
| Stage - IVA | EN | IVA | UICC grading - Stage - IVA |
| Stage - IVB | EN | IVB | UICC grading - Stage - IVB |