Solar urticaria
ICD-10 L56.3 is a billable code used to indicate a diagnosis of solar urticaria.
Solar urticaria is a rare hypersensitivity reaction characterized by the development of wheals or hives upon exposure to sunlight, particularly ultraviolet (UV) radiation. The condition primarily affects the skin, which is the largest organ of the body, and involves the dermis and epidermis layers. Patients typically present with pruritic, erythematous wheals that can appear within minutes of sun exposure and may last for several hours. The pathophysiology involves an abnormal immune response to UV light, leading to mast cell degranulation and histamine release. Disease progression can vary; some patients may experience chronic symptoms, while others may have intermittent episodes. Diagnostic considerations include a thorough patient history, physical examination, and potentially a phototest to confirm sensitivity to UV light. Differential diagnoses include other forms of urticaria and photosensitivity disorders, making accurate diagnosis essential for effective management.
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
L56.3 specifically covers solar urticaria, which is characterized by hives triggered by exposure to sunlight. It does not include other forms of urticaria or photosensitivity disorders.
L56.3 should be used when the patient exhibits hives specifically in response to sunlight exposure. If the urticaria is triggered by other factors, such as food or medications, other codes should be considered.
Documentation should include a detailed patient history of symptoms related to sun exposure, physical examination findings, and results from any diagnostic tests, such as phototesting, to confirm the diagnosis.
