HCPCS L4350: Ankle control orthosis, stirrup style, off-the-shelf

Use L4350 when ankle instability or injury can be addressed with a prefabricated stirrup-style brace. Choose custom codes (e.g., L1940) only if the patient cannot be fitted with off-the-shelf options or needs multi-plane control, permanent support, or customization in accordance with DMEPOS standards.

No. While they serve similar purposes, aircasts (which are often billed with L4350) and splints (which are typically billed with CPT codes like 29515) are different. A splinting procedure is a distinct service and should not be billed as an aircast.

Generally, brace application is considered part of the supply and is not separately billable when the provider is furnishing the orthosis. If CPT application codes are used (e.g., in a different context), verify for bundling edits and payer policy to avoid duplication.