Our Apps NEW! Mobile Coder Anesthesia On February 28, 2017, Mobile Coder Anesthesia was launched to help anesthesiologists accelerate their billing cycle. Mobile Coder Orthopedics The first mobile CPT® billing application designed by an orthopedic surgeon for orthopedic surgeons. Mobile Coder Foot & Ankle Fast and efficient mobile CPT® billing for podiatrists and foot surgery specialists. Mobile Coder Hand & Wrist Mobile CPT® billing designed expressly for hand surgery specialists.