Is K13 a billable code?
No. K13 is a header code that groups 13 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
K13: Other diseases of lip and oral mucosa
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
K13 groups related diagnoses under other diseases of lip and oral mucosa. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under K13
- 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
K13 questions
What does K13 mean?
K13 is the ICD-10-CM code for Other diseases of lip and oral mucosa. It is in chapter 11, Diseases of the digestive system (K00-K95).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.