| Code | Display | Definition |
| tooth-discomfort | Tooth discomfort | Discomfort affecting one or more teeth. |
| temporomandibular-discomfort | Temporomandibular discomfort | Discomfort affecting a temporomandibular joint or associated muscles. |
| mucosal-irritation | Mucosal irritation | Irritation of oral mucosa associated with appliance use. |
| occlusal-change | Occlusal change | An occlusal change observed during therapy. |
| retention-loss | Retention loss | The appliance no longer has adequate retention. |
| device-damage | Device damage | The appliance is damaged. |
| excessive-salivation | Excessive salivation | Excessive salivation associated with appliance use. |
| oral-dryness | Oral dryness | Oral dryness associated with appliance use. |