Sebaceous cyst

This code represents a benign, slow-growing epidermal cyst originating from sebaceous glands, often filled with sebum and keratin. These cysts typically present as a movable, non-tender nodule beneath the skin, commonly found on the face, neck, or trunk.

Apply this code when documentation clearly identifies a sebaceous cyst. This diagnosis is typically made clinically based on the characteristic appearance and feel of the lesion. Surgical excision or drainage of a sebaceous cyst would also support the use of this code for the diagnosis.

• Differentiate carefully between a true sebaceous cyst and other epidermal cysts.
• Ensure documentation specifies "sebaceous cyst" to avoid confusion with pilar or trichilemmal cysts.
• Do not use this code for inflamed or infected sebaceous cysts; consider additional codes for complications.