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The rules say that plans must pay for a medical service or item if regular Medicare would pay for it in this case. 
You can find this rule at 42 Code of Federal Regulations (CFR) Section 422.101. 
 
The rules say that low back pain (LBP) is highly prevalent, with reports of 50-84% of adults experiencing back 
pain at some point, with a high prevalence in adults 65 and older and the highest cause of disability globally. 
Low back and neck pain can influence the quality of life and function and is associated with depression and 
anxiety. In a 2018 National Health Interview Survey, the Centers for Disease Control (CDC) reported 28% of 
men and 31.6% of women age = 18 had lower back pain in the past 3 months. There is debate and a lack of 
consensus on which modalities are best to treat chronic low back pain (CLBP). 
 
The epidural space lies outside the dural membrane inside the spinal canal. It runs the length of the spine and, 
in addition to the exiting nerve roots, contains fatty tissue and blood vessels. The spinal nerve roots can be 
affected by a number of processes as they travel through the epidural space, including but not limited to 
compression from herniation of the nucleus pulposus of the intervertebral discs, degenerative changes 
involving combinations of the spinal ligaments, discs, zygapophyseal (facet) joints, intraspinal synovial cysts, 
osteophytes, and mechanical derangements of the spine such as spondylolisthesis. As a result of mechanical 
irritation, inflammation, injury to a spinal nerve root or other processes, the spinal nerve roots can become a 
significant and disabling source of radicular pain. Epidural steroid injections (ESIs) have been used as a non-
surgical modality to treat low back and neck pain. These procedures typically involve the injection of a solution 
containing corticosteroids and/or anesthetic into the epidural space, although saline may be included at times. 
 
The ESI can be performed in 3 ways. Interlaminar epidural steroid injection (ILESI) approaches the epidural 
space from the posterior spine between the 2 vertebral laminae near the midline. In the transforaminal epidural 
steroid injection (TFESI) approach, the injectant is delivered through the neuroforamen dorsal to the nerve root 
within the intervertebral foramen. The caudal epidural steroid injection (CESI) approach enters through the 
sacral hiatus at the sacral canal to access the epidural space. 
 
The treatment of individuals with spinal disorders, including pain, can be complex, and it is recommended that 
all individuals being considered for interventional spinal procedures undergo a thorough evaluation and be 
treated following development of a comprehensive care plan. 
 
 ESI will be considered medically reasonable and necessary when the following 3 requirements are met: 
History, physical examination, and concordant radiological image-based diagnostic testing and supporting 1 of 
the following: 
Lumbar, cervical or thoracic radiculopathy, radicular pain and/or neurogenic claudication due to central disc 
herniation, osteophyte or osteophyte complexes, severe degenerative disc disease, producing foraminal or 
central spinal stenosis, OR 
Post-laminectomy syndrome 
Acute herpes zoster associated pain 
AND 
 
Radiculopathy, radicular pain and/or neurogenic claudication is severe enough to greatly impact quality of life 
or function. An objective pain scale or functional assessment must be performed at baseline (prior to 
interventions). The same scale* must be repeated at each follow-up for assessment of response. 
AND 
 
Pain duration of at least 4 weeks, and the inability to tolerate noninvasive conservative care or medical 
documentation of failure to respond to 4 weeks of noninvasive conservative care or acute herpes zoster 
refractory to conservative management where a 4-week wait is not required. 
The ESIs must be performed under computed tomography (CT) or fluoroscopy image guidance with 
contrast, unless the patient has a documented contrast allergy or pregnancy where ultrasound guidance without 
contrast may be considered. The ESIs should be performed in conjunction with conservative treatments. 
Patients should be part of an active rehabilitation program, home exercise program or functional restoration 
program. 
 
You can find these rules in the Local Coverage Determination (LCD) Epidural Steroid Injections for Pain 
Management L38994. 
 
If you want to read these Medicare rules, you can go to this website www.medicareappeal.com. 
 
The Plan contract says that the Plan covers items and services in accordance with Medicare rules.