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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 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 (IESI) approaches the epidural space from the posterior 
spine between the 2 vertebral laminae near the midline. In the transforaminal approach (TFESI), the injectant is 
delivered through the neuroforamen dorsal to the nerve root within the intervertebral foramen. The caudal 
approach (CESI) 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. 
 
1. Epidural steroid injection (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 
one of the following. 
     * Lumbar, cervical or thoracic radiculopathy, radicular pain and/or neurogenic claudication due to disc 
herniation, osteophyte or osteophyte complexes, severe degenerative disc disease, producing foraminal or 
central spinal stenosis, OR 
     * Post-laminectomy syndrome, OR      * 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 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 4-week wait is not required. 
2. 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. 
3. Transforaminal epidural steroid injections (TFESIs) involving a maximum of 2 levels in 1 spinal region are 
considered medically reasonable and necessary. It is important to recognize that most conditions would not 
ordinarily require ESI at 2 levels in 1 spinal region. 
4. Caudal epidural steroid injections (CESIs) and interlaminar epidural steroid injections (ILESIs) involving a 
maximum of 1 level are considered medically reasonable and necessary. 
5. It is medically reasonable and necessary to perform TFESIs bilaterally only when clinically indicated. 
6. Repeat ESI when the first injection directly and significantly provided improvement of the condition being 
treated may be considered medically reasonable and necessary when the medical record documents at least 
50% of sustained improvement in pain relief and/or improvement in function measured from baseline using 
SAME scale* for at least 3 months. If a patient fails to respond well to the initial ESI, a repeat ESI after 14 
days can be performed, using a different approach, level and/or medication if appropriate, with the rationale 
and medical necessity for the second ESI documented in the medical record. 
7. An initial injection of contrast is required to confirm epidural placement, unless the patient has a 
contraindication to contrast. The subsequent epidural steroid injections should include corticosteroids and may 
be combined with anesthetics or saline. 
8. The ESIs should be performed in conjunction with conservative treatments. 
9. 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 L39054. 
 
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.