Childhood asymmetric labium majus enlargement

This code describes an abnormal, non-uniform increase in the size of one labium majus in a pediatric patient. This enlargement is typically benign and can be congenital or develop during childhood, often without an identifiable cause.

Use this code when documentation specifies unilateral or asymmetric enlargement of the labium majus in a female child. This diagnosis is often made during routine physical examinations or when a parent reports a noticeable difference in labial size. Documentation should clearly indicate laterality if known, though this code does not specify left or right.

• Ensure the patient's age is consistent with "childhood" as this code is age-specific.
• Differentiate from other labial conditions like cysts, abscesses, or neoplasms, which would require different codes.
• This code is for enlargement; if atrophy or hypoplasia is documented, a different N90 subcategory would be appropriate.