TENS units are covered for the treatment of chronic intractable pain that has been present for at least three months or more, and in some cases for acute post-operative pain.
Not all types of pain can be treated with a TENS unit. TENS units have been proven ineffective in treating headaches, visceral abdominal pain, pelvic pain, and TMJ pain, and therefore Medicare will not pay for the device when used to treat these conditions.
For chronic pain sufferers that have had persistent pain for three or more months in duration, Medicare will pay for a one or two month trial rental to determine if this device will help or alleviate the chronic pain. You must return to your physician exactly 30-60 days after initial evaluation to discuss how the therapy is working and to authorize the purchase of this equipment.
For acute, post-operative pain sufferers, Medicare will consider rental payment for a maximum of 30 days. Any duration longer than that will require individual consideration.
Your provider cannot deliver this product to you without a written order or certificate of medical necessity from your doctor, nor can they get the documentation at a later date because if they do, Medicare can never make payment for those products to you or your provider. So please be patient with your provider while they collect the required documentation from your physician.