1012 Posterior Offset Ring Lock Knee Joint The axis of motion in model 1012 is offset posteriorly from the upright bars. PRODUCTS PARTS HCPC {{ row['SlItemNo'] }} The responsibility of accurate coding lies with the patient care facility that is billing for the product and service. The HCPCS Alpha-Numeric System is subject to revisions and periodic updates and should be consulted prior to billing. Code L2405