K09.8

Applicable To

• Dermoid cyst

• Epidermoid cyst

• Lymphoepithelial cyst

• Epstein’s pearl

Approximate Synonyms

• Dermoid cyst of mouth

• Epstein’s pearl

• Epsteins pearl

• Oral dermoid cyst

Clinical Information

• A benign neoplasm comprised of a cyst, lined by mature epidermis-like tissue with dermal appendages.

• A benign tumor resulting from abnormal embryonic development

• A mature teratoma characterized by the presence of a cyst which is lined by mature tissue resembling the epidermis and the epidermal appendages. It occurs in the ovary, testis, and extragonadal sites including central nervous system and skin.

• A tumor consisting of displaced ectodermal structures along the lines of embryonic fusion, the wall being formed of epithelium-lined connective tissue, including skin appendages, and containing keratin, sebum, and hair. stedman, 25th ed)

• A type of benign not cancer) germ cell tumor type of tumor that begins in the cells that give rise to sperm or eggs) that often contains several different types of tissue such as hair, muscle, and bone.

• Intradermal or subcutaneous saclike structure, the wall of which is stratified epithelium containing keratohyalin granules.

Details

• K09.8 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM K09.8 became effective on October 1, 2022.

• This is the American ICD-10-CM version of K09.8 – other international versions of ICD-10 K09.8 may differ.