ICD-10-CM · Chapter 11 · K00-K95
K13 Other diseases of lip and oral mucosa
Includes
- epithelial disturbances of tongue
Excludes 2 (not included here)
- certain disorders of gingiva and edentulous alveolar ridge (K05-K06)
- cysts of oral region (K09.-)
- diseases of tongue (K14.-)
- stomatitis and related lesions (K12.-)
Use Additional Code
- code to identify:
- alcohol abuse and dependence (F10.-)
- exposure to environmental tobacco smoke (Z77.22)
- exposure to tobacco smoke in the perinatal period (P96.81)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| K13..0 | Diseases of lips | Yes |
| K13..1 | Cheek and lip biting | Yes |
| K13..2 | Leukoplakia and other disturbances of oral epithelium, including tongue | No |
| K13..21 | Leukoplakia of oral mucosa, including tongue | Yes |
| K13..22 | Minimal keratinized residual ridge mucosa | Yes |
| K13..23 | Excessive keratinized residual ridge mucosa | Yes |
| K13..24 | Leukokeratosis nicotina palati | Yes |
| K13..29 | Other disturbances of oral epithelium, including tongue | Yes |
| K13..3 | Hairy leukoplakia | Yes |
| K13..4 | Granuloma and granuloma-like lesions of oral mucosa | Yes |
| K13..5 | Oral submucous fibrosis | Yes |
| K13..6 | Irritative hyperplasia of oral mucosa | Yes |
| K13..7 | Other and unspecified lesions of oral mucosa | No |
| K13..70 | Unspecified lesions of oral mucosa | Yes |
| K13..79 | Other lesions of oral mucosa | Yes |
Last reviewed: September 2026