CPT 78599
Unlisted resp px dx nuc med
CPT 78599 at a glance
- Code
- 78599
- Code type
- CPT/HCPCS
- Short descriptor
- Unlisted resp px dx nuc med
- Category
- ASC Ancillary
- ASC payment status
- Payable in an ASC (ancillary)
- CMS addendum
- BB (Ancillary)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is CPT code 78599?
CPT 78599 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Unlisted resp px dx nuc med". In the ASC context it is grouped under ASC Ancillary.
Is CPT 78599 payable in an ambulatory surgery center (ASC)?
CPT 78599 is a covered ancillary service (CMS Addendum BB). Medicare reimburses it in the ASC setting when it is integral to a covered ASC surgical procedure.
Where is CPT 78599 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 78599?
CPT 78599 is most associated with Diagnostic Radiology.
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.