Subacute (active) lichen planus
ICD-10 L43.3 is a billable code used to indicate a diagnosis of subacute (active) lichen planus.
Subacute (active) lichen planus is a dermatological condition characterized by the presence of pruritic, polygonal, flat-topped papules that are often violaceous in color. This condition primarily affects the skin but can also involve mucous membranes, particularly in the oral cavity. The lesions typically appear symmetrically on the wrists, ankles, and lower back, and may be associated with Wickham's striae, which are fine white lines on the surface of the lesions. The disease progression can vary, with some patients experiencing spontaneous resolution while others may have persistent lesions that require treatment. Diagnostic considerations include a thorough clinical examination, patient history, and sometimes a skin biopsy to rule out other conditions such as psoriasis or eczema. The subacute form indicates that the lesions are currently active, which may require more aggressive management compared to chronic forms of lichen planus. Treatment options may include topical corticosteroids, systemic medications, or phototherapy, depending on the severity and extent of the disease.
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
L43.3 specifically covers subacute lichen planus, which is characterized by active lesions that may be symptomatic. It is important to differentiate it from chronic lichen planus (L43.2) and other similar skin conditions.
L43.3 should be used when the patient presents with active lesions of lichen planus that are symptomatic and require treatment. If the lesions are chronic and not currently active, L43.2 would be more appropriate.
Documentation should include a detailed clinical examination, patient history indicating the duration and symptoms of the lesions, treatment plans, and any response to previous therapies. Photographic evidence may also be beneficial.
