| ICD-10 Code | Description |
| K13.0 | Diseases of lips |
| K13.1 | Cheek and lip biting |
| K13.21 | Leukoplakia of oral mucosa, including tongue |
| K13.22 | Minimal keratinized residual ridge mucosa |
| K13.23 | Excessive keratinized residual ridge mucosa |
| K13.24 | Leukokeratosis nicotina palati |
| K13.29 | Other disturbances of oral epithelium, including tongue |
| K13.3 | Hairy leukoplakia |
| K13.4 | Granuloma and granuloma-like lesions of oral mucosa |
| K13.5 | Oral submucous fibrosis |
| K13.6 | Irritative hyperplasia of oral mucosa |
| K13.70 | Unspecified lesions of oral mucosa |
| K13.79 | Other lesions of oral mucosa |
