Summary
Invasive (needle) EMG is outside a chiropractor's scope of practice under the Mississippi law cited in the policy, so it can only be performed by physicians, primarily neurologists. Non-invasive surface EMG has not been scientifically demonstrated as a useful tool for evaluating radiculopathy, and some surface EMGs are not medically necessary and are investigational in nature. EMG is covered for diagnostic purposes in spinal cord injury, herniated nucleus pulposus, thoracic outlet syndrome, nerve syndrome, back and extremity pain, peripheral neuritis and the Tensilon test for myasthenia gravis, and for treatment of pathological muscle abnormalities for spasticity, incapacitating muscle spasm and semiparesis.
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