CPT 77439
Surf rad thr imaging guidance ultrasound placement
Last reviewed August 2026 · DataLily AI data team
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CPT 77439 at a glance
- Code
- 77439
- Code type
- CPT/HCPCS
- Short descriptor
- Surf rad thr img gdn us plmt
- Category
- ASC Ancillary
- ASC eligibility
- ASC-eligible (ancillary)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is CPT code 77439?
CPT 77439 is a CPT/HCPCS procedure code for surf rad thr imaging guidance ultrasound placement. Its official short descriptor is "Surf rad thr img gdn us plmt". In the ASC context it is grouped under ASC Ancillary.
Is CPT 77439 eligible in an ambulatory surgery center (ASC)?
CPT 77439 is an ancillary service that can be provided in the ASC setting when it supports a surgical procedure.
Where is CPT 77439 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 77439?
CPT 77439 is most associated with Diagnostic Radiology.
Reference information about ASC eligibility and typical procedure setting. Codes, descriptors, and ASC-eligibility status change over time. This is a coding reference, not billing, coding, or legal advice. Always verify against current guidance and individual payer policy before scheduling or billing. CPT is a registered trademark of the American Medical Association. Read the DataLily AI data methodology.