Follicular cyst of the skin and subcutaneous tissue, unspecified
ICD-10 L72.9 is a billable code used to indicate a diagnosis of follicular cyst of the skin and subcutaneous tissue, unspecified.
Follicular cysts of the skin and subcutaneous tissue, classified under ICD-10 code L72.9, are benign lesions that arise from hair follicles. These cysts are typically filled with keratin and can present as small, round, firm nodules beneath the skin. They may vary in size and can occur anywhere on the body, although they are most commonly found on the face, neck, and trunk. Clinically, these cysts may be asymptomatic, but they can become inflamed or infected, leading to discomfort or pain. The anatomy involved includes the epidermis and dermis, where the cysts originate from the infundibulum of hair follicles. Disease progression is generally slow, and while they are not malignant, they can recur after excision. Diagnostic considerations include a thorough clinical examination and, if necessary, imaging studies to rule out other skin lesions. A biopsy may be performed to confirm the diagnosis in atypical cases.
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
L72.9 covers unspecified follicular cysts, which may include various types of cysts arising from hair follicles that do not have a more specific diagnosis. It is used when the exact nature of the cyst is not documented.
L72.9 should be used when the cyst is confirmed as a follicular cyst but lacks further specification. If the cyst is identified as an epidermoid or pilar cyst, the more specific codes L72.0 or L72.1 should be utilized.
Documentation should include a detailed description of the cyst's location, size, and characteristics, as well as any symptoms experienced by the patient. Clinical notes should confirm the diagnosis of a follicular cyst.
