CPT 31646
Brnchsc w/ther aspir sbsq
CPT 31646 at a glance
- Code
- 31646
- Code type
- CPT/HCPCS
- Short descriptor
- Brnchsc w/ther aspir sbsq
- 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 31646?
CPT 31646 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Brnchsc w/ther aspir sbsq". In the ASC context it is grouped under ASC Surgical.
Is CPT 31646 payable in an ambulatory surgery center (ASC)?
CPT 31646 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 31646 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 31646?
CPT 31646 is most associated with General Surgery, 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.