Lichen planopilaris
ICD-10 L66.1 is a used to indicate a diagnosis of lichen planopilaris.
Lichen planopilaris (LPP) is a chronic inflammatory condition that primarily affects the hair follicles, leading to cicatricial alopecia. Clinically, it presents with symptoms such as scalp itching, burning, and hair loss, often characterized by the presence of violaceous papules and scarring on the scalp. The condition can also involve other areas of the body, including the eyebrows and beard region. The pathophysiology of LPP is believed to involve an autoimmune response that targets the hair follicles, resulting in inflammation and subsequent destruction of the follicular structures. Disease progression can vary; some patients may experience stable disease, while others may have progressive hair loss. Diagnosis is typically made through clinical examination and may be supported by scalp biopsy, which reveals lichenoid tissue changes and a band-like infiltrate of lymphocytes at the dermal-epidermal junction. Differential diagnoses include other forms of scarring alopecia, such as discoid lupus erythematosus and follicular lichen planus. Early diagnosis and intervention are crucial to prevent irreversible hair loss.
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
L66.1 specifically covers lichen planopilaris, which is characterized by inflammation of the hair follicles leading to hair loss and scarring. It is distinct from other forms of lichen planus that do not involve the hair follicles.
L66.1 should be used when the clinical presentation is consistent with lichen planopilaris, particularly when there is evidence of follicular inflammation and scarring. It is important to differentiate it from other alopecias, such as alopecia areata or discoid lupus erythematosus.
Documentation should include a thorough clinical examination, patient history, and any relevant laboratory or biopsy results that confirm the diagnosis of lichen planopilaris. Detailed notes on treatment response and follow-up are also essential.
