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K13 Other diseases of lip and oral mucosa

ICD-10-CM category K13 sits in Chapter 11 (Diseases of the digestive system, K00-K95). It contains 13 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

K13.2 Leukoplakia and oth disturb of oral epithelium, inc tongueK13.7 Other and unspecified lesions of oral mucosa

Billable codes in K13

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

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