Follicular cyst of the skin and subcutaneous tissue, unsp

This code represents a benign, fluid-filled sac originating from a hair follicle or sebaceous gland within the skin or subcutaneous tissue. It is a general diagnosis used when the specific type of follicular cyst (e.g., epidermal, trichilemmal) is not documented. These cysts are typically slow-growing and often asymptomatic.

Use this code when documentation indicates a follicular cyst of the skin or subcutaneous tissue without further specification of its type. This is appropriate when the physician's diagnosis is simply "follicular cyst" or "cyst of skin, unspecified type," and no additional details are provided to allow for a more specific code.

• Avoid using this code if the documentation specifies the type of follicular cyst (e.g., epidermal cyst, pilar cyst); instead, use the more specific code.
• Ensure the documentation clearly states "follicular cyst" or a similar term, and not another type of skin lesion.
• This code is for an unspecified cyst; if the cyst is inflamed or infected, an additional code for the infection may be necessary.