Classic lichen planopilaris
ICD-10 L66.11 is a billable code used to indicate a diagnosis of classic lichen planopilaris.
Classic lichen planopilaris (LPP) is a chronic inflammatory condition that primarily affects the hair follicles, leading to cicatricial alopecia (scarring hair loss). Clinically, it presents with symptoms such as pruritus, burning, and tenderness in the scalp, often accompanied by the formation of erythematous papules and plaques. The condition typically involves the scalp but can also affect other areas with hair follicles, such as the beard and body. The pathophysiology of LPP is characterized by an autoimmune response where lymphocytic infiltration damages the hair follicles, leading to irreversible hair loss. Disease progression can vary, with some patients experiencing acute flares while others may have a more chronic course. Diagnosis is primarily clinical, supported by a thorough history and physical examination, and may be confirmed with a scalp biopsy showing lichenoid tissue changes and follicular damage. Differential diagnoses include other forms of scarring alopecia, such as discoid lupus erythematosus and follicular lichen planus, necessitating careful evaluation to ensure accurate diagnosis and management.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
L66.11 specifically covers classic lichen planopilaris, characterized by scarring alopecia and lichenoid tissue changes. It does not include other forms of lichen planus or non-scarring alopecias.
L66.11 should be used when the diagnosis is confirmed as classic lichen planopilaris, particularly when there is evidence of follicular damage and scarring. It should not be used for non-scarring alopecias or other types of lichen planus.
Documentation should include a comprehensive clinical evaluation, patient history, physical examination findings, and, if applicable, results from scalp biopsies that confirm the diagnosis of classic lichen planopilaris.
