H71.9

Clinical Information

• A non-neoplastic mass of keratin-producing squamous epithelium, frequently occurring in the meninges; bones of the skull, and most commonly in the middle ear and mastoid region. Cholesteatoma can be congenital or acquired. Cholesteatoma is not a tumor nor is it associated with high cholesterol.

• Non-neoplastic keratinizing mass with stratified squamous epithelium, frequently occurring in the meninges, central nervous system, bones of the skull, and most commonly in the middle ear and mastoid region.

Details

• H71.9 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.

• The 2023 edition of ICD-10-CM H71.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of H71.9 – other international versions of ICD-10 H71.9 may differ.