Pilot Study to Examine the Feasibility of the Dynamic Interferential Spinal Cord Stimulation System™ (DISCSS™)

Inclusion Criteria: 1. Age greater than 21 years and less than 80 years 2. Has a diagnosis of chronic neuropathic pain of trunk and limbs 3. Is eligible for and participating in a spinal cord stimulation trial of a commercially available SCS trial system. Subjects will be evaluated at the end of the background Commercial SCS Device phase for complications and appropriateness to continue to the investigational phase with the DISCSS™ system. Complications from the background phase with the commercial SCS device may include, but are not limited to unusual pain or discomfort during the trial stimulation, local skin reactions or infection at the implant site. 4. Has a Back Pain Score of minimum intensity 5.0 on a Numeric Rating Scale (NRS) 5. Has an NRS Back Pain Score that is greater than both Leg Pain Scores 6. Is not a candidate for revision surgery 7. Has completed a minimum of 6 weeks of conservative therapy (physical therapy, anti-inflammatory medications, or similar therapies) with limited or no reduction in back pain 8. Is willing to adhere to the warnings associated with the DISCSS™ system 9. Is willing to halt and/or modify the use of all prescription and over-the-counter analgesics per the Investigator's direction during study participation 10. Is capable of providing written informed consent 11. Is able to comply with the requirements of study visits, follow-up phone visits and self-assessment questionnaires Exclusion Criteria: 1. Is a poor surgical candidate by determination of the Investigator 2. Is unable to operate or understand the use of the commercial or investigational Spinal Cord Stimulator systems 3. Has an active systemic infection 4. Has exposure to shortwave, microwave or ultrasound diathermy at home or at work 5. Has occupational exposure to high levels of non-ionizing radiation such as radio or cell phone transmission stations, facilities using radiofrequency heat sealers or induction heaters, or electric power infrastructure controlled environments 6. Has an implanted cardiac system (e.g. pacemakers) 7. Is currently participating in another clinical study 8. Is currently pregnant or lactating, or not using adequate birth control 9. Has any untreated major psychiatric comorbidity 10. Has serious drug-related behavioral issues per Investigator's assessment 11. Has a bleeding complication or coagulopathy 12. Requires concurrent use of anticoagulant therapy such as heparin, warfarin, rivaroxaban, dabigatran, apixaban, edoxaban, enoxaparin, fondaparinux 13. Is immunocompromised and at risk for infection 14. Has insulin-dependent diabetes not controlled through diet and/or medication 15. Has chronic pain related to malignancy 16. Is otherwise determined, based on the opinion of the Investigator to be an unsuitable candidate for this study