Section 20-2-VI - SUPPLIES, EQUIPMENT, ORTHOTICS, AND PROSTHETICSA. Physicians and therapists must obtain authorization from the payer before purchase/rental of supplies, equipment, orthotics, and prosthetics costing more than three hundred dollars ($300.00) per item for workers' compensation patients. When submitting bills, include the appropriate HCPCS code. If there is not an appropriate HCPCS code, use CPT code 99070.B. The payer has sole right of selection of vendors.