K13.2Leukoplakia and other disturbances of oral epithelium, including tongue

K13.2 is the ICD-10-CM diagnosis code for leukoplakia and other disturbances of oral epithelium, including tongue. It belongs to category K13 (other diseases of lip and oral mucosa), block K00-K14 (diseases of oral cavity and salivary glands) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

Within K13, choose K13.2 (Leukoplakia and other disturbances of oral epithelium, including tongue) only when documentation doesn't support a more specific option: diseases of lips (K13.0), cheek and lip biting (K13.1), Hairy leukoplakia (K13.3), granuloma and granuloma-like lesions of oral mucosa (K13.4), oral submucous fibrosis (K13.5), Irritative hyperplasia of oral mucosa (K13.6) and other and unspecified lesions of oral mucosa (K13.7).

To report this condition, pick the subcode that matches the documentation: K13.21 (tongue), K13.22 (mucosa), K13.23 (mucosa), K13.24 (palati) and K13.29 (tongue).

Don't report K13.2 together with the conditions in its Excludes1 note: carcinoma in situ of oral epithelium (D00.0-) and hairy leukoplakia (K13.3).

Use an additional 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) and 2 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.