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Site-specific mucosal injury tool
| Grade | Sign | Sites Evaluated |
|---|---|---|
| 0 | Normal or healed mucosa | Upper labial mucosa |
| 1 | Erythema, nonsevere ≤50% of total area of site | Soft palate and fauces |
| 2 | Erythema, nonsevere >50% of total area of site | Ventral tongue and FOM |
| 3 | Erythema, severe, any injection within area of site | Left lateral tongue |
| 4 | Ulcer(s) <1 cm2 | Right lateral tongue |
| 5 | Ulcer(s) 1–3 cm2 | Lower labial mucosa |
| 6 | Ulcer(s) >3 cm2 | Left buccal mucosa |
| Right buccal mucosa | ||
| Gingival and hard palate |
