CPT 64520
N block lumbar/thoracic
CPT 64520 at a glance
- Code
- 64520
- Code type
- CPT/HCPCS
- Short descriptor
- N block lumbar/thoracic
- 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 64520?
CPT 64520 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "N block lumbar/thoracic". In the ASC context it is grouped under ASC Surgical.
Is CPT 64520 payable in an ambulatory surgery center (ASC)?
CPT 64520 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 64520 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 64520?
CPT 64520 is most associated with Anesthesiology – Pain Medicine, Internal Medicine – Pain Medicine, Interventional Pain Medicine, Neurological Surgery, among others.
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.