1. A non-transitory machine-readable medium including instructions, which when executed by a neuromodulator connected to implanted electrodes which are operably positioned near a spinal cord for use by the neuromodulator to deliver a therapy to the spinal cord, cause the neuromodulator to provide the therapy using implanted electrodes to a patient having a medical condition, including deliver electrical stimulation energy as a pulsed electrical waveform to the spinal cord in accordance with a stimulation program that preferentially stimulates dorsal horn neuronal elements over dorsal column neuronal elements in the spinal cord, wherein the instructions, which when executed by the neuromodulator, cause the neuromodulator to generate a first electrical field having a first during at least a first pulse in the pulsed electrical waveform, generate a second electrical field having a second orientation during at least a second pulse in the pulsed electrical waveform, and generate a third electrical field having a third during at least a third pulse in the pulsed electrical waveform the first, second and third orientations being different from each other.