HCPCS Level II code L3806 describes a custom-fabricated wrist-hand-finger orthosis that includes one or more nontorsion joints, turnbuckles, elastic bands or springs, and may include soft interface material and straps; the code represents the device itself plus fitting and adjustment services, typically provided by orthotists or prosthetists in an outpatient clinic, rehabilitation, or durable medical equipment setting for patients requiring hand and wrist stabilization or joint support.