CPT 55970
Sex transformation m to f
CPT 55970 at a glance
- Code
- 55970
- Code type
- CPT/HCPCS
- Short descriptor
- Sex transformation m to f
- 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 55970?
CPT 55970 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Sex transformation m to f". In the ASC context it is grouped under ASC Surgical.
Is CPT 55970 payable in an ambulatory surgery center (ASC)?
CPT 55970 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 55970 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
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.