Alopecia areata, unspecified
ICD-10 L63.9 is a billable code used to indicate a diagnosis of alopecia areata, unspecified.
Alopecia areata is an autoimmune condition characterized by sudden, patchy hair loss that can affect any hair-bearing area of the body. The exact etiology remains unclear, but it is believed to involve a complex interplay of genetic, environmental, and immunological factors. The condition can present as one or more round, smooth patches of hair loss on the scalp or other areas, and it may progress to total scalp hair loss (alopecia totalis) or complete loss of body hair (alopecia universalis). The underlying anatomy involved includes hair follicles, which are targeted by the immune system, leading to inflammation and disruption of the normal hair growth cycle. Diagnosis is primarily clinical, based on the characteristic appearance of hair loss, but may be supported by dermatoscopic examination or biopsy in atypical cases. The disease course is unpredictable, with some patients experiencing spontaneous regrowth while others may have recurrent episodes. Management options include topical corticosteroids, intralesional injections, and systemic therapies, depending on the severity and extent of hair loss.
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
L63.9 covers alopecia areata that is unspecified, meaning the extent of hair loss is not clearly defined. It does not include specific forms such as alopecia totalis or alopecia universalis, which have their own codes.
L63.9 should be used when the diagnosis of alopecia areata is made but the specific type or extent of hair loss is not documented. If the patient has total or universal hair loss, the more specific codes should be utilized.
Documentation should include a detailed clinical assessment of the patient's hair loss, any associated symptoms, and the results of any diagnostic tests performed. Photographic evidence may also be beneficial.
