ICD-10 Code K13.29 – Other disturbances of oral epithelium, including tongue (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K13.29 – Other disturbances of oral epithelium, including tongue
What it is
K13.29 identifies other non-specific disorders of the oral epithelium, including the tongue. Use it when the record describes an oral mucosal or tongue epithelial disturbance that does not fit a more specific diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Findings may include visible mucosal or tongue surface changes, irritation, or abnormal epithelial appearance noted on exam.
When to use this code
Use K13.29 when the provider documents an oral epithelial disturbance or tongue epithelial disorder without naming a more specific condition. It is appropriate for vague or residual descriptions after evaluation. If the note identifies a distinct lesion, infection, or inflammatory disorder, code that diagnosis instead.
Do not use for
Do not use this code for clearly diagnosed oral lesions, infections, neoplasms, or traumatic injuries. Check documentation when the chart specifies a more exact oral or tongue condition.
Coding tip
Code K13.29 only when the provider’s wording is nonspecific and no better-defined oral diagnosis is documented.