Humana Deep Brain Stimulation and Cortical Stimulation - Medicare Advantage Form
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Medicare
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(MACs)
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Only
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NCD
NCD
NCD
Medicare Benefit Policy Manual
Chapter 15 – Covered Medical
and Other Health Service
Deep Brain Stimulation for
Essential Tremor and
Parkinson’s Disease
Electrical Nerve Stimulators
Treatment of Motor Function
Disorders with Electric Nerve
Stimulation
Category III Codes
Magnetic Resonance Image
Guided High Intensity Focused
Ultrasound (MRgFUS) for
Tremor
Magnetic Resonance Guided
Focused Ultrasound Surgery
System (MRgFUS) for the
treatment of neurologic
conditions
Magnetic-Resonance-Guided
Focused Ultrasound Surgery
(MRgFUS) for Essential Tremor
and Tremor Dominant
Parkinson's Disease
Magnetic-Resonance-Guided
Focused Ultrasound Surgery
(MRgFUS) for Essential Tremor
and Tremor Dominant
Parkinson's Disease
Deep Brain Stimulation and Cortical Stimulation
Page: 2 of 15
§120 -
Prosthetic
Devices
160.24
160.7
160.2
L35490
A56902
L37421
A57435
L37790
A58323
J5 – J8 - Wisconsin
Physicians Service
Insurance
Corporation
J6 – JK - National
Government
Services, Inc. (Part
A/B MAC)
IA, KS, MO, NE
IN, MI
IL, MN, WI
CT, NY, ME, MA, NH,
RI, VT
J15 - CGS
Administrators,
LLC (Part A/B MAC)
KY, OH
L37729
A57512
JE - Noridian
Healthcare
Solutions, LLC
CA, HI, NV,
American Samoa,
Guam, Northern
Mariana Islands
L37738
A57513
JF - Noridian
Healthcare
Solutions, LLC
AK, AZ, ID, MT, ND,
OR, SD, UT, WA, WY
Magnetic-Resonance-Guided
Focused Ultrasound Surgery
(MRgFUS) for Essential Tremor
L38495
A57839
JH – JL Novitas
Solutions, Inc.
(Part A/B MAC)
AR, CO, NM, OK, TX,
LA, MS
DE, D.C., MD, NJ, PA
Magnetic Resonance Image
Guided High Intensity Focused
Ultrasound (MRgFUS) for
Essential Tremor
L37761
A56690
JJ – JM - Palmetto
GBA (Part A/B
MAC)
AL, GA, TN
NC, SC, VA, WV
Magnetic-Resonance-Guided
Focused Ultrasound Surgery
(MRgFUS) for Essential Tremor
L38506
A57884
JN - First Coast
Service Options,
Inc. (Part A/B
MAC)
FL, PR, U.S. VI
LCD
LCA
LCD
LCA
LCD
LCA
LCD
LCA
LCD
LCA
LCD
LCA
LCD
LCA
LCD
LCA
Deep Brain Stimulation and Cortical Stimulation
Page: 3 of 15
Description
Deep brain stimulation (DBS) involves the surgical placement of electrodes, also called leads, in selected
areas of the brain to treat neurological disorders. The electrodes are placed using magnetic resonance
imaging (MRI) or computed tomography (CT) to guide the neurosurgeon to the site to be stimulated.
Fiducial markers are small titanium screws, which may be placed into the anesthetized scalp prior to DBS, to
assist physicians with stereotactic or computerized targeting for the exact DBS lead location during surgery.
After placement, a CT scan is performed to verify accuracy. The fiducial markers remain in place until after
DBS leads are inserted.
During DBS lead placement, the individual may be asked to move their fingers or toes or answer questions.
This stimulation test helps the surgeon confirm accurate placement and effectiveness of the permanent
electrodes in the brain. These are later connected to a neurostimulator (also referred to as a
neurotransmitter or pulse generator) that is implanted under the skin, usually near the collarbone. The
battery operated neurostimulator sends high frequency electrical signals to the electrodes which inhibit the
activity in that region of the brain. The DBS is programmed with the intensity, frequency and duration
according to the individual’s symptoms and can be readjusted as symptoms change.
Directional deep brain stimulation enables the current to be steered precisely to the targeted structural
area avoiding areas of stimulation that could cause side effects.
Examples of US Food & Drug Administration (FDA) approved DBS devices include, but may not be limited to:
• Activa RC neurostimulator for essential tremor (ET) and Parkinson’s disease 59
• Activa SC neurostimulator for chronic, intractable primary dystonia including generalized and/or
segmental dystonia, hemidystonia and cervical dystonia (torticollis)65
• Infinity DBS system for ET and Parkinson’s disease27
• Reclaim DBS for obsessive compulsive disorder (OCD)66
• SenSight directional lead system (SenSight lead, Percept PC stimulator) for dystonia, epilepsy, ET and
Parkinson’s disease
• Vercise directional system (Cartesia lead, and DBS, Genus, Gevia or PC stimulators) for ET and
Parkinson’s disease64
Stimulation of the anterior nucleus of the thalamus reduces the frequency of seizures in adults with drug
resistant or medically refractory epilepsy providing neuromodulation therapy to change how brain cells
work by delivering electrical stimulation to the areas involved in seizures. This stimulation is performed
Deep Brain Stimulation and Cortical Stimulation
Page: 4 of 15
bilaterally. An example of an FDA-approved DBS device for the treatment of drug-resistant epilepsy is the
Medtronic DBS System for Epilepsy.34,62
Cortical stimulation is a treatment option for individuals with refractory focal epilepsy and a well
delineated seizure focus which may be useful when resective epilepsy surgery is not possible. Cortical
stimulation devices use a closed-loop cortical stimulation unit paired to a seizure detection system.24,34,48 An
example of an FDA-approved cortical stimulation system is the NeuroPace RNS System which is used as an
adjunct to medication in adults with partial onset seizures from no more than two foci that are refractory to
two or more antiepileptic medications. The device is implanted in the skull while the individual is under
general anesthesia. 28,33,63
The implantable components include a neurostimulator, a depth lead and a cortical strip lead. The external
components include the programmer, a laptop computer with proprietary software that has a wand and
telemetry interface enabling communication with an implanted RNS neurostimulator. Physicians use the
programmer to noninvasively program the detection and stimulation parameters of an implanted device
and are able to view the individual's brain electrical activity in real time as well as upload information that
has been stored in the RNS neurostimulator.
The system monitors brain activity to detect seizures as they start and delivers electrical stimulation to the
seizure focus to stop seizure activity before it becomes clinically apparent. The typical individual is treated
with a cumulative total of 5 minutes of stimulation a day and the treatment is reversible.
Magnetic resonance guided focused ultrasound (MRgFUS, [eg, ExAblate Neuro]), is a treatment option that
purportedly treats medication refractory ET or movement disorder and tremor dominant Parkinson’s
disease. MRgFUS therapy, also called transcranial MR-guided high-intensity focused ultrasound (MRgHIFU),
uses a stereotactic head frame/helmet like device with a cooling cap and an individual ultrasound
transducer to thermally ablate the thalamus in the ventral intermediate nucleus creating an intracranial
therapeutic lesion. The MR images assist in treatment positioning providing real time feedback. The created
lesion disrupts the brain activity thought to be responsible for an ET. This procedure is performed
unilaterally and is less invasive than DBS implantation or a traditional thalamotomy that involves drilling or
boring a hole into the skull to create a therapeutic lesion.
Coverage Determination
Humana follows the CMS requirements that only allows coverage and payment for services that are
reasonable and necessary for the diagnosis and treatment of illness or injury or to improve the functioning
of a malformed body member except as specifically allowed by Medicare.
Please refer to the above CMS guidance for Deep brain stimulation.
Please refer to the above CMS guidance for MRgFUS/MRgHIFU.
In interpreting or supplementing the criteria above and in order to determine medical necessity consistently,
Humana may consider the criteria contained in the following:
Deep Brain Stimulation and Cortical Stimulation
Page: 5 of 15
Cortical Stimulation
Cortical stimulation (eg, NeuroPace RNS) will be considered medically reasonable and necessary ALL of the
following criteria are met28,33,63:
• Partial-onset seizures; AND
• Currently averaging 3 or more disabling seizures (eg, partial motor seizures, complex partial seizures
and/or secondarily generalized seizures) a month over the 3 most recent months; AND
• Individual is able to or has the necessary assistance to properly operate the device or magnet; AND
• Individual is not pregnant; AND
• No more than 2 epileptogenic foci localized by diagnostic testing; AND
• Refractory to 2 or more antiepileptic medications; AND
• No other implanted medical devices that deliver electrical energy to the brain; AND
• Not currently a candidate for resective epilepsy surgery; AND
• Not high risk for surgical complications such as active systemic infection, coagulation disorders (such as
the use of antithrombotic therapies) or platelet count below 50,000; AND
• The device is FDA approved
Replacement/revision of a stimulator/generator/battery and/or lead/electrode and/or programmer is
considered medically necessary if the original generator/lead/programmer is no longer under warranty and
cannot be repaired.10
The use of the criteria in this Medicare Advantage Medical Coverage Policy provides clinical benefits highly
likely to outweigh any clinical harms. Services that do not meet the criteria above are not medically
necessary and thus do not provide a clinical benefit. Medically unnecessary services carry risks of adverse
outcomes and may interfere with the pursuit of other treatments which have demonstrated efficacy.
Coverage Limitations
US Government Publishing Office. Electronic code of federal regulations: part 411 – 42 CFR § 411.15 -
Particular services excluded from coverage
DBS will not be considered medically reasonable and necessary for any indications other than those listed
above including, but not limited to the following11,22,30,37:
• Alzheimer’s Disease21
• Cerebral palsy43
Deep Brain Stimulation and Cortical Stimulation
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• Chronic neuropathic pain42
• Cluster headaches45
• Depression8, 27, 57, 58
• Movement disorder caused by multiple sclerosis (MS)52
• Obsessive compulsive disorder (OCD)7,9,23,35,46
• Orthostatic tremor
• Tourette syndrome4,54
A review of the current medical literature shows that the evidence is insufficient to determine that this
service is standard medical treatment for these indications. There remains an absence of randomized
blinded clinical studies examining benefit and long-term clinical outcomes establishing the value of this
service in clinical management for these indications.
The placement of fiducial markers is considered integral to the primary procedure and not separately
reimbursable.