CPT 78598
Lung perf&ventilat diferentl
CPT 78598 at a glance
- Code
- 78598
- Code type
- CPT/HCPCS
- Short descriptor
- Lung perf&ventilat diferentl
- 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 78598?
CPT 78598 is a CPT/HCPCS procedure code. Its official CMS short descriptor is "Lung perf&ventilat diferentl". In the ASC context it is grouped under ASC Ancillary.
Is CPT 78598 payable in an ambulatory surgery center (ASC)?
CPT 78598 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 78598 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 78598?
CPT 78598 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.