HCPCS Level II code K1014 describes an addition to an endoskeletal knee-shin orthotic system featuring a four-bar linkage or multiaxial design with fluid swing and stance phase control; this represents a lower-extremity prosthetic/orthotic component intended to provide dynamic gait control and stability during ambulation. The service type is prosthetic/orthotic component provision and adjustment, and the typical site of service is outpatient orthotics/prosthetics clinics or prosthetic fitting centers where devices are measured, fitted, and adjusted.