An implantable neuromodulation system and method of treating a patient through neuromodulation of a patient's body tissue. The neuromodulation system includes a portable transmitter and an implantable receiver. The implantable receiver includes one or more electrodes disposed on the distal end of one or more elongated, flexible insulated leads. The transmitter is programmable with a treatment protocol to cause the transmitter to generate a pulsed, alternating magnetic field in accordance with the treatment protocol. When the transmitter is placed in close proximity to the receiver, the alternating magnetic field pulses generated by the transmitter cause the receiver to operably generate stimulating pulses delivered via the electrode(s) to the targeted tissue of the patient.