Pityriasis alba
ICD-10 L30.5 is a billable code used to indicate a diagnosis of pityriasis alba.
Pityriasis alba is a common, benign skin condition characterized by the presence of hypopigmented patches on the skin, primarily affecting children and adolescents. Clinically, it presents as light-colored, scaly patches that are often found on the face, arms, and upper body. The lesions are typically asymptomatic, though they may occasionally be slightly itchy. The condition is thought to be related to a history of atopic dermatitis, and it is more prevalent in individuals with darker skin tones due to the contrast between the affected areas and the surrounding skin. The pathophysiology involves a reduction in melanin production in the affected areas, and while the exact cause remains unclear, it may be associated with environmental factors, sun exposure, and skin dryness. Diagnosis is primarily clinical, based on the characteristic appearance of the lesions, and may be supported by a history of atopic dermatitis. Differential diagnoses include vitiligo, tinea versicolor, and other hypopigmented skin disorders. Treatment is usually not required, but emollients and topical corticosteroids may be used to alleviate any associated dryness or irritation.
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
L30.5 specifically covers pityriasis alba, which is characterized by hypopigmented patches on the skin, primarily in children and adolescents. It is important to differentiate it from other skin conditions such as vitiligo and tinea versicolor.
L30.5 should be used when the clinical presentation aligns with pityriasis alba, particularly when there is a history of atopic dermatitis and the lesions are asymptomatic. It should not be used for conditions that present with more pronounced symptoms or different lesion characteristics.
Documentation should include a detailed clinical examination noting the appearance of the lesions, patient history including any atopic dermatitis, and any treatments attempted. Photographic evidence may also be beneficial.
