Leukoplakia of vulva

This code describes the presence of white, thickened patches or plaques on the vulvar skin or mucous membranes. These lesions are typically benign but are considered precancerous, representing a hyperkeratotic response to chronic irritation or inflammation. Histological examination often reveals hyperkeratosis with or without atypia.

Apply this code when documentation explicitly states "leukoplakia of vulva" or "vulvar leukoplakia." This diagnosis is typically made following a physical examination and often confirmed by biopsy. It is appropriate for initial diagnosis, follow-up, and management of this specific vulvar condition.

• Do not confuse with lichen sclerosus (N90.5), which can present similarly but has distinct histological features.
• If dysplasia or carcinoma in situ is identified within the leukoplakia, code the more severe condition first.
• Ensure the documentation specifies the vulvar location; otherwise, consider N90.89 for other specified noninflammatory disorders of vulva and perineum.