TENS units by pain area
A TENS unit sends mild electrical pulses through electrode pads to relieve pain, and it works where the pads sit. Our five pain area pages cover systemic, back, head and neck, lower extremity and upper extremity pain. Each page shows what Medicare says, safety limits and questions to ask your clinician.
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.
Back pain: what to know
Head and neck pain needs extra care with a TENS unit. Medicare lists headache as not reasonable and necessary. The NHS says not to use TENS on your neck, mouth or eyes. University of Iowa Health Care says not to use it on any part of your head, face or throat.
Head and neck pain: what to know
For leg, knee or foot pain, a TENS unit works where the pads sit. The NHS shows pads above and below a knee. The NHS and University of Iowa say not to use TENS on numb skin, which matters in foot neuropathy. Medicare policy L33802 does not name leg pain. Ask your clinician first.
Lower extremity pain: what to know
For shoulder, arm or hand pain, a TENS unit works where the pads sit. Shoulder pads can sit near the chest, so pacemaker and chest limits matter. The NHS says not to use TENS with a pacemaker. Medicare policy L33802 does not name upper extremity pain. Ask your clinician first.
Upper extremity pain: what to know
A TENS unit works where the electrode pads are placed. It does not treat the whole body at once. For widespread pain from conditions such as arthritis or fibromyalgia, your clinician may pick one or two target areas. Medicare policy L33802 does not name systemic pain. Check your plan.
Systemic pain: what to knowA TENS unit sends mild electrical pulses through electrode pads on your skin. The pulses are meant to relieve pain. The unit works where the pads are placed, so the area of your pain matters.
These five pages follow the pain areas that Analgesic Healthcare lists. Each page explains what sources such as the NHS, University of Iowa Health Care and the Medicare TENS policy say about that area. Each page also lists safety limits and questions for your doctor or physical therapist.
Two coverage points come up often. The Medicare TENS policy (LCD L33802) says TENS for chronic low back pain will be denied as not reasonable and necessary. It also lists headache as a condition where TENS is not considered reasonable and necessary. Other plans have their own rules, so check with your plan.
Pick the page that matches where you hurt. If you are unsure what causes your pain, see a healthcare professional first. Follow your clinician's instructions and your device's instructions. For the basics, read our guide to TENS units and our TENS unit safety guide.
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