ICD-10-CM 2027
ICD-10 code for buccal psoriasis
From the official ICD-10-CM alphabetic index entry “Psoriasis › buccal”. Page updated September 29, 2026.
About coding buccal psoriasis
The ICD-10-CM code for buccal psoriasis 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 buccal psoriasis ICD-10 codes
What is the ICD-10 code for buccal psoriasis?
- 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.