L1831 – Knee orthosis, locking knee joint(s), positional orthosis, prefabricated, includes fitting and adjustment

HCPCS Level II code · L codes: Orthotic and Prosthetic Procedures and Devices

Active code Carrier judgment

HCPCS codeL1831
Long description
Knee orthosis, locking knee joint(s), positional orthosis, prefabricated, includes fitting and adjustment
Short description
Knee orth pos locking joint
Pricing indicator
38 Orthotics, prosthetics, prosthetic devices & vision services
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
D1F Prosthetic/Orthotic devices
Added
January 1, 2004
Last change
January 1, 2004 – No change

Frequently asked questions

What is HCPCS code L1831?

L1831 is a HCPCS Level II code for knee orthosis, locking knee joint(s), positional orthosis, prefabricated, includes fitting and adjustment.

Does Medicare cover L1831?

The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby L codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.