CPT 45399
Unlisted procedure colon
Last reviewed August 2026 · DataLily AI data team
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CPT 45399 at a glance
- Code
- 45399
- Code type
- CPT/HCPCS
- Short descriptor
- Unlisted procedure colon
- Category
- Not typically performed in an ASC
- ASC eligibility
- Not typically performed in an ASC
- Typical setting
- Hospital outpatient department (POS 22) or office (POS 11). Not typically performed in an ASC.
What is CPT code 45399?
CPT 45399 is a CPT/HCPCS procedure code for unlisted procedure colon. Its official short descriptor is "Unlisted procedure colon". In the ASC context it is grouped under Not typically performed in an ASC.
Is CPT 45399 eligible in an ambulatory surgery center (ASC)?
CPT 45399 is not typically performed in an ambulatory surgery center; it is usually done in a hospital outpatient department (HOPD) or office instead.
Where is CPT 45399 typically performed?
Hospital outpatient department (POS 22) or office (POS 11). Not typically performed in an ASC.
Which specialties use CPT 45399?
CPT 45399 is most associated with Gastroenterology, General 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.