L66.4
ICD-10-CMThis code represents a rare, chronic inflammatory disorder primarily affecting the face, characterized by reticulated erythema, follicular atrophy, and pitted scarring. It typically presents as a net-like pattern of redness with small depressions, often on the cheeks and forehead.
Assign this code when documentation explicitly states a diagnosis of folliculitis ulerythematosa reticulata. This diagnosis is typically made clinically based on the characteristic skin lesions and confirmed by a dermatologist. Supporting documentation should describe the distinctive reticulated erythema, follicular involvement, and scarring.
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