--- title: "Back Pain and TENS Units: Coverage, Safety, Next Steps" description: "Back pain and TENS: Medicare says TENS for chronic low back pain will be denied. See what the policy and the NHS say, plus safety rules and questions to ask." url: https://analgesic.multisites.ai/pain-areas/back-pain publisher: Analgesic Healthcare phone: +1-800-749-1188 contact: https://analgesic.multisites.ai/contact --- ![A woman outdoors holds her lower back](https://analgesic.multisites.ai/_astro/area-back-pain.DFQDa4Dh_1fWzia.avif) Pain area # Back pain and TENS units: what Medicare says and what to ask A TENS unit sends mild pulses through pads near the painful area. Medicare can cover one for pain after surgery when its criteria are met, but its policy (L33802) denies TENS for chronic low back pain. Other plans set their own rules. Your clinician decides if a unit fits your back pain and where the pads go. Updated October 26, 20263 min read5 sources **Medicare coverage.** As of the LCD revision effective January 1, 2024, the Medicare TENS policy (L33802) says "TENS therapy for Chronic Low Back Pain (CLBP) will be denied as not reasonable and necessary." Other plans set their own rules; check with your plan. ## What does Medicare say about TENS for back pain? Medicare does not cover TENS for chronic low back pain. The Medicare TENS policy, local coverage determination (LCD) L33802, says: “TENS therapy for Chronic Low Back Pain (CLBP) will be denied as not reasonable and necessary.” This is the text of the revision effective for services performed on or after January 1, 2024. The policy also says: “A TENS unit will be denied as not reasonable and necessary for acute pain (less than three months duration) other than for post-operative pain.” So the policy covers neither chronic low back pain nor most short-term back pain. Other plans set their own rules. Medicare Advantage, Medicaid, VA, workers’ compensation and commercial plans may differ, so check with your plan. Back pain situation What the Medicare TENS policy says Chronic low back pain TENS “will be denied as not reasonable and necessary” Acute pain under three months Denied, other than post-operative pain Post-operative pain Coverage limited to 30 days from the day of surgery, as a rental Other plans Check with your plan Learn the term in our glossary entry on [chronic low back pain](https://analgesic.multisites.ai/glossary/chronic-low-back-pain). ## Why does Medicare deny TENS for chronic low back pain? CMS reviewed the evidence and found it inadequate. A CMS transmittal (R149NCD) explains: “In 2010, the Therapeutic and Technology Assessment Subcommittee of the American Academy of Neurology (AAN) published a report finding transcutaneous electrical nerve stimulation (TENS) ineffective for chronic low back pain (CLBP).” The transmittal then says: “effective for claims with dates of service on or after, June 8, 2012, CMS believes the evidence is inadequate to support coverage of TENS for CLBP as reasonable and necessary.” It allows coverage only for patients enrolled in an approved clinical study. Our post on Medicare and chronic low back pain and the guide on [TENS for lower back pain](https://analgesic.multisites.ai/guides/tens-for-lower-back-pain) go deeper. ## What else might my clinician suggest for back pain? Your clinician may suggest movement, therapy or other non-drug options. NCCIH reports that “There’s low- or moderate-quality evidence that a variety of mind and body practices, including acupuncture, electromyography biofeedback, low-level laser therapy, mindfulness-based stress reduction, progressive muscle relaxation, spinal manipulation, tai chi, and yoga, may be helpful for chronic low-back pain.” The words “low- or moderate-quality” and “may” set honest limits. Our blog has general reading on back pain. These posts do not replace advice from your clinician: - [Exercises for lower back pain](https://analgesic.multisites.ai/exercises-for-lower-back-pain) - [How to reduce back pain fast](https://analgesic.multisites.ai/how-to-reduce-back-pain-fast) For more options to discuss, read our guide on pain management without opioids. ## Where do the pads go for back pain? Your clinician or physical therapist should show you where the pads go. A [TENS unit](https://analgesic.multisites.ai/glossary/tens) works where the pads are placed. The NHS gives general rules: “Place the sticky pads onto clean skin, near the painful parts of your body. Leave a gap between the pads.” Two limits apply to the back. The NHS says: “Do not use TENS on your chest and back at the same time.” The University of Iowa Health Care page lists “Directly on your backbone” among the places where you should not use TENS. It also says to place pads on “fleshy areas of the body, not over boney sites.” Our pad placement guide lists more rules. Learn the term [lumbar spine](https://analgesic.multisites.ai/glossary/lumbar-spine) in the glossary. ## Who should not use a TENS unit for back pain? Some people should not use a TENS unit at all. The NHS says: “Do not use TENS if: you have epilepsy; you have a pacemaker; you’re pregnant, unless your doctor or midwife tells you to.” The University of Iowa Health Care page says: “Do not use TENS if you have: A cardiac pacemaker or defibrillator” and lists any implanted metallic or electronic device. Do not use TENS on broken, irritated, infected or numb skin. Do not use it while you sleep, drive or bathe. Follow your clinician’s instructions and your device’s instructions. Read the full list in our [TENS unit safety guide](https://analgesic.multisites.ai/guides/tens-unit-safety). ## When should I see a clinician instead of self-treating? See a clinician if you are not sure what causes your back pain. The NHS says: “If you’re not sure what’s causing your pain, see a healthcare professional before using a TENS machine.” Tell your clinician about any new or sudden change. A TENS unit will not tell you what is wrong. ## Next step Talk with your doctor or physical therapist about your back pain, your plan and your options. To ask AHC about a TENS unit, call (800) 749-1188 or use [Contact](https://analgesic.multisites.ai/contact). You can also read our guide to TENS units. ## Questions people ask ### Does Medicare cover a TENS unit for chronic low back pain? No. The Medicare TENS policy (LCD L33802) says TENS therapy for chronic low back pain will be denied as not reasonable and necessary. A national coverage decision effective June 8, 2012 allows coverage only for patients in an approved clinical study. Other plans differ, so check with your plan. ### Can I use a TENS unit for acute back pain? The Medicare TENS policy says a TENS unit will be denied for acute pain of less than three months other than post-operative pain. Other plans differ. Ask your clinician about your pain and your plan before you buy or rent a unit. ### Where do the pads go for back pain? Your clinician or physical therapist should show you. The NHS says to place pads near the painful area with a gap between them, and not on your chest and back at the same time. The University of Iowa says not to use TENS directly on your backbone. ### Is a TENS unit safe with a pacemaker? No. The NHS says not to use TENS if you have a pacemaker. The University of Iowa lists a cardiac pacemaker or defibrillator and any implanted metallic or electronic device. Ask your clinician before you try any unit. ## Terms on this page - [Local coverage determination](https://analgesic.multisites.ai/glossary/local-coverage-determination) - [Chronic low back pain](https://analgesic.multisites.ai/glossary/chronic-low-back-pain) - [Post-operative pain](https://analgesic.multisites.ai/glossary/post-operative-pain) - [Medicare Advantage](https://analgesic.multisites.ai/glossary/medicare-advantage) - [Cardiac pacemaker](https://analgesic.multisites.ai/glossary/cardiac-pacemaker) - [Lumbar spine](https://analgesic.multisites.ai/glossary/lumbar-spine) - [Acute pain](https://analgesic.multisites.ai/glossary/acute-pain) - [TENS unit](https://analgesic.multisites.ai/glossary/tens-unit) ## Sources 1. [CMS: LCD Transcutaneous Electrical Nerve Stimulators (TENS) (L33802)](https://www.cms.gov/medicare-coverage-database/view/lcd.aspx?lcdid=33802) 2. [CMS: Transmittal R149NCD, TENS for Chronic Low Back Pain](https://www.cms.gov/regulations-and-guidance/guidance/transmittals/downloads/r149ncd.pdf) 3. [NHS: TENS (transcutaneous electrical nerve stimulation)](https://www.nhs.uk/conditions/transcutaneous-electrical-nerve-stimulation-tens/) 4. [University of Iowa Health Care: Transcutaneous electrical nerve stimulator (TENS)](https://uihc.org/health-topics/transcutaneous-electrical-nerve-stimulator-tens) 5. [NCCIH: Complementary Health Approaches for Chronic Pain (information for clinicians)](https://www.nccih.nih.gov/health/providers/digest/complementary-health-approaches-for-chronic-pain) Checked against the sources above on October 26, 2026. Coverage rules change, so check the linked page or your plan before you act. This page gives general information, not medical advice. Talk with your doctor or physical therapist about your own care, and follow your clinician's and your device's instructions. In an emergency, call 911. ## Keep reading - [TENS for lower back pain: what the evidence and Medicare coverage sayMedicare does not cover TENS for chronic low back pain. CMS decided on June 8, 2012 that the evidence was inadequate to support coverage. The current policy, LCD L33802, says it will be denied as not reasonable and necessary. A 2022 review calls the wider TENS evidence uncertain. Ask your clinician about options.](https://analgesic.multisites.ai/guides/tens-for-lower-back-pain) - [TENS unit safety: who should not use one, where pads must not go, and when to stopTENS units are not safe for everyone. The NHS says not to use TENS if you have epilepsy, have a pacemaker, or are pregnant unless your doctor or midwife tells you to. University of Iowa Health Care says not to use it with any implanted device. Never use TENS while you sleep, bathe, or drive.](https://analgesic.multisites.ai/guides/tens-unit-safety) - [Exercises For Lower Back PainExplore targeted exercises for lower back pain that help reduce pain and strengthen muscles. Enhance your back health with proven techniques.](https://analgesic.multisites.ai/exercises-for-lower-back-pain) - [How to Reduce Back Pain Fast?Learn effective techniques to reduce back pain fast. Discover proven tips and remedies that provide quick relief and improve your comfort.](https://analgesic.multisites.ai/how-to-reduce-back-pain-fast) - [Does insurance or Medicare cover a TENS unit? What the Medicare policy saysMedicare covers TENS units under its durable medical equipment benefit, but only for certain pain and only when its rules are met. As of the LCD revision effective January 1, 2024, Medicare covers chronic intractable pain and acute post-operative pain. It denies TENS for chronic low back pain. Other plans may differ, so check with your plan.](https://analgesic.multisites.ai/guides/tens-unit-insurance-coverage) - [Does Medicare cover a TENS unit? What the rules say in 2026Sometimes. Medicare's local policy (LCD L33802) covers a TENS unit for chronic, intractable pain or acute post-operative pain when set rules are met. It says TENS for chronic low back pain will be denied as not reasonable and necessary. Headache is also listed as not reasonable and necessary. Coverage is never certain.](https://analgesic.multisites.ai/guides/does-medicare-cover-tens-unit) ## Questions about your unit or a bill? Call toll free. For customer care, ask for extension 508. [Call (800) 749-1188](tel:+1-800-749-1188)[Pay invoice](https://ahcpatientservices.com/)