CPT code 44799 designates unlisted procedures on the intestine and is used when an intestinal intervention lacks a specific CPT descriptor. Nationally, unlisted codes like 44799 matter because they allow billing for novel, rare, or evolving surgical techniques that fall outside standard code sets, ensuring services can be reported while documentation and coding guidance catch up. Payers commonly evaluated in relation to this code include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

This publication provides a concise national overview of CPT code 44799, covering clinical context, typical sites of service (hospital operating room, ambulatory surgical center, and other procedural settings), and the operational implications of using an unlisted intestinal procedure code. Readers will find benchmarks and practical coding considerations, a summary of payer handling practices, and recent policy developments affecting unlisted procedural reporting. The report also outlines documentation and billing elements that influence claim adjudication for unlisted intestinal procedures and highlights where readers can expect variability across payers.