CPT 69505
Remove mastoid structures
CPT 69505 at a glance
- Code
- 69505
- Code type
- CPT/HCPCS
- Short descriptor
- Remove mastoid structures
- Category
- ASC Surgical
- ASC payment status
- Payable in an ASC (surgical)
- CMS addendum
- AA (Surgical)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is CPT code 69505?
CPT 69505 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Remove mastoid structures". In the ASC context it is grouped under ASC Surgical.
Is CPT 69505 payable in an ambulatory surgery center (ASC)?
CPT 69505 appears on Medicare's ASC Covered Procedures List (CMS Addendum AA), so Medicare reimburses it when the surgery is performed in a certified ambulatory surgery center.
Where is CPT 69505 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 69505?
CPT 69505 is most associated with Otolaryngology (ENT).
Reference information compiled from the CMS April 2026 ASC payment addenda (AA, BB, EE). Codes, descriptors, and ASC payment status change with each CMS update. This is a coding reference, not billing, coding, or legal advice. Always verify against the current CMS addenda and individual payer policy before billing. CPT is a registered trademark of the American Medical Association.