ICD-10-CM 2027
ICD-10 code for Patches of mouth white
From the official ICD-10-CM alphabetic index entry “White › patches of mouth”. Page updated September 29, 2026.
About coding Patches of mouth white
The ICD-10-CM code for Patches of mouth white is K13.29 (Other disturbances of oral epithelium, including tongue).
Within K13.2, choose K13.29 (Other disturbances of oral epithelium, including tongue) only when documentation doesn't support a more specific option: leukoplakia of oral mucosa, including tongue (K13.21), minimal keratinized residual ridge mucosa (K13.22), excessive keratinized residual ridge mucosa (K13.23) and Leukokeratosis nicotina palati (K13.24).
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 is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about Patches of mouth white ICD-10 codes
What is the ICD-10 code for Patches of mouth white?
- K13.29 — Other disturbances of oral epithelium, including tongue.
Is K13.29 billable?
- Yes. K13.29 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K13.29 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K13.29 as a principal diagnosis.
Is K13.29 a CC or MCC?
- No. K13.29 is neither a CC nor an MCC under MS-DRG v44.0.