HCPCS Code L1833: for Knee Orthosis (KO), Adjustable Knee Joints, Prefabricated, OTS

Learn HCPCS L1833 billing and documentation rules for prefabricated knee orthoses. Understand coverage, coding, and LCD requirements here.

Use Code

Frequently asked questions

Not anymore. L1833 does not require a face-to-face encounter or a Written Order Prior to Delivery (WOPD) for dates of service on or after August 12, 2024.

No. It must be linked to objectively documented knee instability or a qualifying recent injury or surgery—as outlined in the LCD. Subjective pain alone does not meet coverage criteria.

Only one orthosis per knee is considered medically necessary and covered at a time. Additional orthoses may be deemed duplicates and not allowed.