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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 state that: 
 
A. Facet Joint Interventions: 

- Facet Joint Interventions generally consist of four types of procedures: Intraarticular (IA) Facet Joint 
Injections, Medial Branch Blocks (MBB), Radiofrequency Ablations (RFA) and Facet cyst 
rupture/aspiration. 

Facet Joint Interventions are considered medically reasonable and necessary for the diagnosis and treatment of 
chronic pain in patients who meet ALL of the following criteria: 
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1. Moderate to severe chronic neck or low back pain, predominantly axial, that causes functional 
deficit measured on pain or disability scale; AND* 
2. Pain that has been present for a minimum of 3 months with documented failure to respond to 
noninvasive conservative care management (as tolerated); AND 
3. Absence of untreated radiculopathy or neurogenic claudication (except for radiculopathy caused 
by facet joint synovial cyst); AND 
4. There is no non-facet pathology per clinical assessment or radiology studies that could explain 
the source of the patient's pain, including but not limited to fracture, tumor, infection, or 
significant deformity. 

- *Pain assessment must be performed and documented at baseline, after each diagnostic procedure using 
the same pain scale for each assessment. A disability scale must also be obtained at baseline to be used 
for functional assessment (if patient qualifies for treatment). 

B. Diagnostic Facet Joint Injection Procedures (IA or MBB): 
The primary indication of a diagnostic facet joint procedure is to diagnose whether the patient has facet 
syndrome. Intraarticular (IA) facet block(s) are considered medically reasonable and necessary as a diagnostic 
test only if MBB cannot be performed due to specific documented anatomic restrictions or there is an 
indication to proceed with therapeutic intraarticular injections. These restrictions must be clearly documented 
in the medical record and made available upon request. Diagnostic procedures should be performed with the intent that if successful, a RFA procedure would be considered the primary treatment goal at the diagnosed level(s). 
A second diagnostic facet procedure is considered medically reasonable and necessary to confirm validity of 
the initial diagnostic facet procedure when administered at the same level. The second diagnostic procedure 
may only be performed a minimum of 2 weeks after the initial diagnostic procedure. 
-  
1. An initial diagnostic facet joint procedure will be considered medically reasonable and 
necessary when the patient meets the criteria outlined under the indications for facet joint 
interventions. 
2. A second confirmatory diagnostic facet joint procedure is considered medically reasonable and 
necessary in patients who meet BOTH of the following criteria: 
- The patient meets the criteria for the first diagnostic procedure; AND 
- After the first diagnostic facet joint procedure, there must be a consistent positive 
response of at least 80% relief of primary (index) pain (with the duration of relief being 
consistent with the agent used). 

Frequency limitation: For each covered spinal region no more than four (4) diagnostic joint sessions will be 
considered medically reasonable and necessary per rolling 12 months, in recognition that the pain generator 
cannot always be identified with the initial and confirmatory diagnostic procedure. 
 
C. Therapeutic Facet Joint Injection Procedures (IA): 
Therapeutic facet joint procedures are considered medically reasonable and necessary for patients who 
meet ALL of the following criteria: 
-  
1. The patient has had two (2) medically reasonable and necessary diagnostic facet joint 
procedures with each one providing a consistent minimum of 80% relief of primary (index) pain 
(with the duration of relief being consistent with the agent used); AND 
2. Subsequent therapeutic facet joint procedures at the same anatomic site result in at least 
consistent 50% pain relief for at least three (3) months from the prior therapeutic procedure or at 
least 50% consistent improvement in the ability to perform previously painful movements and 
ADLs as compared to baseline measurement using the same scale; AND 
3. Documentation of why the patient is not a candidate for radiofrequency ablation (such as 
established spinal pseudarthrosis, implanted electrical device) is in the medical record. 
Frequency limitation: For each covered spinal region no more than four (4) therapeutic facet joint injection 
(IA) sessions will be reimbursed per rolling 12 months. 
 
D. Facet Joint Denervation: 
An initial thermal RFA of cervical, thoracic, or lumbar paravertebral facet joint (medial branch) nerves is 
considered medically reasonable and necessary for patients who have had at least two (2) medically reasonable 
and necessary diagnostic MBBs, with each one providing a consistent minimum of 80% sustained relief of 
primary (index) pain (with the duration of relief being consistent with the agent used). 
Repeat thermal facet joint RFA at the same anatomic site is considered medically reasonable and necessary 
provided the patient had a minimum of consistent 50% improvement in pain for at least six (6) months or at 
least 50% consistent improvement in the ability to perform previously painful movements and ADLs as 
compared to baseline measurement using the same scale. 
Frequency limitation: For each covered spinal region no more than two (2) radiofrequency sessions will be 
reimbursed per rolling 12 months. 
 
 E. Facet Cyst Aspiration/Rupture 
Intra-articular facet joint injection performed with synovial cyst aspiration is considered medically reasonable 
and necessary when BOTH of the following criteria are met: 
-  
1. Advanced diagnostic imaging study (e.g., MRI/CT/myelogram) confirm compression or 
displacement of the corresponding nerve root by a facet joint synovial cyst; AND 
2. Clinical and physical symptoms related to synovial facet cyst are documented in the medical 
record. 
Frequency limitation: Cyst aspiration/rupture may be repeated once and only if there is 50% or more consistent 
improvement in pain for at least three (3) months. 
 
Limitations 
-  
1. Facet joint interventions done without CT or fluoroscopic guidance are considered not medically 
reasonable and necessary. This includes facet joint interventions done without any guidance, 
performed under ultrasound guidance, or with Magnetic Resonance Imaging (MRI). 
2. General anesthesia is considered not medically reasonable and necessary for facet joint 
interventions. Neither conscious sedation nor Monitored Anesthesia Care (MAC) is routinely 
necessary for intraarticular facet joint injections or medial branch blocks and are not routinely 
considered medically reasonable and necessary. Individual consideration may be given on 
redetermination (appeal) for payment in rare, unique circumstances if the medical necessity of 
sedation is unequivocal and clearly documented in the medical record. Frequent reporting of 
these services together may trigger focused medical review. 
3. It is not expected that patients will present with pain in both cervical/thoracic and lumbar spinal 
regions. Therefore, facet joint interventions (both diagnostic and therapeutic) are limited to one 
spinal region per session. 
4. It is not routinely necessary for multiple blocks (e.g., epidural injections, sympathetic blocks, 
trigger point injections, etc.) to be provided to a patient on the same day as facet joint 
procedures. Multiple blocks on the same day could lead to improper or lack of diagnosis. If 
performed, the medical necessity of each injection (at the same or a different level[s]) must be 
clearly documented in the medical record. For example, the performance of both paravertebral 
facet joint procedures and a transforaminal epidural steroid injection (TFESI) at the same or 
close spinal level at the same encounter would not be expected unless a synovial cyst is 
compressing the nerve root. In this situation, TFESI may provide relief for the radicular pain, 
while the facet cyst rupture allows nerve root decompression. Frequent reporting of multiple 
blocks on the same day may trigger a focused medical review. 
5. Facet joint intraarticular injections and medial branch blocks may involve the use of anesthetic, 
corticosteroids, anti-inflammatories and/or contrast agents and do not include injections of 
biologicals or other substances not FDA designated for this use. 
6. One to two levels, either unilateral or bilateral, are allowed per session per spine region. The 
need for a three or four-level procedure bilaterally may be considered under unique 
circumstances and with sufficient documentation of medical necessity on appeal. A session is a 
time period, which includes all procedures (i.e., MBB, IA, facet cyst ruptures, and RFA 
ablations) that are performed during the same day. 
7. If there is an extended period of time, two years or more, since the last RFA and/or there is a 
question as to the source of the recurrent pain then diagnostic procedures must be repeated. 
8. Therapeutic intraarticular facet injections are not considered medically reasonable and necessary 
unless there is documentation explaining why RFA cannot be performed. 9. Facet joint procedures in patients for the indication of generalized pain conditions (such as fibromyalgia) or chronic centralized pain syndromes are considered not medically reasonable and necessary. Individual consideration may be considered under unique circumstances and with 
sufficient documentation of medical necessity on appeal. 
10. In patients with implanted electrical devices, providers must follow manufacturer instructions 
and extra planning as indicated to ensure safety of procedure. 
The following are considered not medically reasonable and necessary: 
-  
1. Intraarticular and extraarticular facet joint prolotherapy 
2. Non-thermal modalities for facet joint denervation including chemical, low-grade thermal 
energy (less than 80 degrees Celsius), laser neurolysis, and cryoablation 
3. Intra-facet implants 
4. Facet joint procedure performed after anterior lumbar interbody fusion (ALIF) 
5. Definitive clinical and/or imaging findings pointing to a specific diagnosis other than facet joint 
syndrome 

Diagnostic injections or MBB at the same level as the previously successful RFA procedure. 
 
You can find this rule at the Medicare Local Coverage Determination (LCD) L34892: Facet Joint Interventions 
for Pain Management. 
 
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.