K13.2 vs K13.3
K13.2 (Leukoplakia and other disturbances of oral epithelium, including tongue) compared with K13.3 (Hairy leukoplakia), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. K13.2 carries an Excludes1 note covering K13.3: “hairy leukoplakia (K13.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| K13.2Leukoplakia and other disturbances of oral epithelium, including tongue | K13.3Hairy leukoplakia | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Leukoplakia and other disturbances of oral epithelium, including tongue is a non-billable ICD-10-CM category code (K13.2). | Hairy leukoplakia is a billable ICD-10-CM diagnosis code (K13.3). |
| Includes | epithelial disturbances of tongue | epithelial disturbances of tongue |
| Use additional code | code to identify: alcohol abuse and dependence (F10.-) exposure to environmental tobacco smoke (Z77.22) | code to identify: alcohol abuse and dependence (F10.-) exposure to environmental tobacco smoke (Z77.22) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources