CPT 43645
Lap gastr bypass incl smll i
CPT 43645 at a glance
- Code
- 43645
- Code type
- CPT/HCPCS (Add. EE)
- Short descriptor
- Lap gastr bypass incl smll i
- Category
- Excluded from ASC Pay (Add. EE)
- ASC payment status
- Excluded from ASC payment
- CMS addendum
- EE (Excluded)
- Typical setting
- Hospital outpatient department (POS 22) or office (POS 11). Not separately payable in an ASC.
What is CPT code 43645?
CPT 43645 is a CPT/HCPCS (Add. EE) procedure code. Its official CMS short descriptor is "Lap gastr bypass incl smll i". In the ASC context it is grouped under Excluded from ASC Pay (Add. EE).
Is CPT 43645 payable in an ambulatory surgery center (ASC)?
CPT 43645 is on CMS Addendum EE, the list of procedures excluded from ASC payment. Medicare does not pay for it in the ASC setting; it is typically performed in a hospital outpatient department (HOPD) or office instead.
Where is CPT 43645 typically performed?
Hospital outpatient department (POS 22) or office (POS 11). Not separately payable in an ASC.
Which specialties use CPT 43645?
CPT 43645 is most associated with Gastroenterology, General Surgery.
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.