1. A system for stimulating a selected nerve target, the system comprising: two or more neural stimulation leads; an array of electrodes disposed, at least in part, on the two or more neural stimulation leads and adapted to be implantably positioned adjacent a single peripheral nerve trunk, the array of electrodes including at least a first electrode disposed on a first neural stimulation lead and a second electrode disposed on a second neural stimulation lead; an implantable medical device including a programmable memory adapted to receive a programming signal, at least partially based on a physiologic signal generated by a physiologic sensor and indicative of a status of one or more physiologic parameters, for selectively applying electrical stimulation to a stimulation electrode vector combination of at least two electrodes within the electrode array; and wherein the two or more neural stimulation leads include or are attached to a positioning feature configured for allowing the leads to be implantably positioned adjacent to the single peripheral nerve trunk.