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National Coverage Determination (NCD)

Electroencephalographic Monitoring During Surgical Procedures Involving the Cerebral Vasculature

160.8

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Tracking Information

Publication Number
100-3
Manual Section Number
160.8
Manual Section Title
Electroencephalographic Monitoring During Surgical Procedures Involving the Cerebral Vasculature
Version Number
2
Effective Date of this Version
06/19/2006
Ending Effective Date of this Version
Implementation Date
06/19/2006
Implementation QR Modifier Date

Description Information

Benefit Category
Diagnostic Tests (other)
Physicians' Services


Please Note: This may not be an exhaustive list of all applicable Medicare benefit categories for this item or service.

Item/Service Description
Indications and Limitations of Coverage

CIM 35-57

Electroencephalographic (EEG) monitoring is a safe and reliable technique for the assessment of gross cerebral blood flow during general anesthesia and is covered under Medicare. Very characteristic changes in the EEG occur when cerebral perfusion is inadequate for cerebral function. EEG monitoring as an indirect measure of cerebral perfusion requires the expertise of an electroencephalographer, a neurologist trained in EEG, or an advanced EEG technician for its proper interpretation.

The EEG monitoring may be covered routinely in carotid endarterectomies and in other neurological procedures where cerebral perfusion could be reduced. Such other procedures might include aneurysm surgery where hypotensive anesthesia is used or other cerebral vascular procedures where cerebral blood flow may be interrupted.
Cross Reference
Claims Processing Instructions

Transmittal Information

Transmittal Number
48
Coverage Transmittal Link
https://www.cms.gov/Regulations-and-Guidance/Guidance/Transmittals/Downloads/R48NCD.pdf
Revision History

03/2006 - Effective/Implementation Date: 06/19/2006. (TN 48) (CR4278)
Other

National Coverage Analyses (NCAs)

This NCD has been or is currently being reviewed under the National Coverage Determination process. The following are existing associations with NCAs, from the National Coverage Analyses database.

Coding Analyses for Labs (CALs)

This NCD has been or is currently being reviewed under the National Coverage Determination process. The following are existing associations with CALs, from the Coding Analyses for Labs database.

Additional Information

Other Versions
Title Version Effective Between
Electroencephalographic Monitoring During Surgical Procedures Involving the Cerebral Vasculature 2 06/19/2006 - N/A You are here
Electroencephalographic (EEG) Monitoring During Surgical Procedures Involving the Cerebral Vasculature 1 01/01/1966 - 06/19/2006 View
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Reasons for Denial
Note: This section has not been negotiated by the Negotiated RuleMaking Committee. It includes CMS’s interpretation of it’s longstanding policies and is included for informational purposes. Tests for screening purposes that are performed in the absense of signs, symptoms, complaints, or personal history of disease or injury are not covered except as explicity authorized by statue. These include exams required by insurance companies, business establishments, government agencies, or other third parties. Tests that are not reasonable and necessary for the diagnosis or treatment of an illness or injury are not covered according to the statue. Failure to provide documentation of the medical necessity of tests may result in denial of claims. The documentation may include notes documenting relevant signs, symptoms, or abnormal findings that substantiate the medical necessity for ordering the tests. In addition, failure to provide independent verification that the test was ordered by the treating physician (or qualified nonphysician practitioner) through documentation in the physician’s office may result in denial. A claim for a test for which there is a national coverage or local medical review policy will be denied as not reasonable and necessary if it is submitted without an ICD-9-CM code or narrative diagnosis listed as covered in the policy unless other medical documentation justifying the necessity is submitted with the claim. If a national or local policy identifies a frequency expectation, a claim for a test that exceeds that expectation may be denied as not reasonable and necessary, unless it is submitted with documentation justifying increased frequency. Tests that are not ordered by a treating physician or other qualified treating nonphysician practitioner acting within the scope of their license and in compliance with Medicare requirements will be denied as not reasonable and necessary. Failure of the laboratory performing the test to have the appropriate Clinical Laboratory Improvement Act of 1988 (CLIA) certificate for the testing performed will result in denial of claims.
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