CPT 20501
Injection sinus tract diagnostic
Last reviewed August 2026 · DataLily AI data team
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CPT 20501 at a glance
- Code
- 20501
- Code type
- CPT/HCPCS
- Short descriptor
- Njx sinus tract diagnostic
- Category
- ASC Surgical
- ASC eligibility
- ASC-eligible (surgical)
- Typical setting
- Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
What is CPT code 20501?
CPT 20501 is a CPT/HCPCS procedure code for injection sinus tract diagnostic. Its official short descriptor is "Njx sinus tract diagnostic". In the ASC context it is grouped under ASC Surgical.
Is CPT 20501 eligible in an ambulatory surgery center (ASC)?
CPT 20501 can be performed in a certified ambulatory surgery center.
Where is CPT 20501 typically performed?
Ambulatory surgery center (POS 24) or hospital outpatient department (POS 22).
Which specialties use CPT 20501?
CPT 20501 is most associated with General Surgery, Orthopaedic Surgery.
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.