HCPCS code L3670: Shoulder Orthosis, Acromio-clavicular Canvas and Webbing Type, Prefabricated, Off-the-shelf

Properly use and bill HCPCS code L3670 by meeting the documentation and billing requirements enumerated in our short guide.

Use Code

Frequently asked questions

Use L3670 when the orthosis is a simple canvas and webbing design specific to the AC joint and prefabricated without customization. Use L3660 for figure-of-eight type slings, and L3671 when the orthosis is custom fabricated.

Include a WOPD, provider justification of medical need, confirmation of OTS status, and laterality. Avoid billing prior to delivery or without proper documentation.

Yes, replacement may be covered if medically necessary—e.g., due to damage or patient condition changes—but requires documentation such as beneficiary’s ongoing need and reason for replacement, per DME MAC guidelines.