CAM 20110

Topographic Brain Mapping

Category:Medicine   Last Reviewed:December 2020
Department(s):Medical Affairs   Next Review:December 2999
Original Date:December 1995    

Topographic brain mapping (TBM) is an extension of conventional electroencephalography. TBM, sometimes referred to as brain electrical activity mapping (BEAM), involves the computerized analysis and topographic display of EEG rhythms and evoked potential data on a color video screen. A wide assortment of maps can be created to represent different measurement patterns. The purpose of TBM is to identify patterns that distinguish pathological groups from normal ones.

Topographic brain mapping is considered INVESTIGATIONAL.


  1. Yozbatiran, N., & Cramer, S. C. (2006). Imaging motor recovery after stroke. NeuroRx, 3 (4), 482-488.

Coding Section

Codes Number Description
CPT No Code  
ICD-9 Procedure   No Code     
ICD-9 Diagnosis   Investigational for all codes
HCPCS S8040 Topographic brain mapping   
ICD-10-CM (effective 10/01/15)    Investigational for all codes
ICD-10-PCS (effective 10/01/15)    ICD-10 codes are only used for inpatient services. There is no specific ICD-10-PCS code for this procedure.
Type of Service Medical/Diagnostic    
Place of Service Inpatient  

Procedure and diagnosis codes on Medical Policy documents are included only as a general reference tool for each policy. They may not be all-inclusive.

Policy to remain active, but will not undergo scheduled review after 2015.

Topographic brain mapping

This medical policy was developed through consideration of peer-reviewed medical literature generally recognized by the relevant medical community, U.S. FDA approval status, nationally accepted standards of medical practice and accepted standards of medical practice in this community, Blue Cross and Blue Shield Association technology assessment program (TEC) and other non-affiliated technology evaluation centers, reference to federal regulations, other plan medical policies and accredited national guidelines.

"Current Procedural Terminology© American Medical Association.  All Rights Reserved" 

History From 2013 Forward     


Annual review, no change to policy intent 


Annual review, no change to policy intent. 


Annual review, no change to policy intent. 


Annual review, no change to policy intent. 


Annual review, no change to policy intent. 


Annual review, no change to policy intent. Adding ICD-10 coding. 


Annual review, no change to policy intent. Added coding.


Annual Review. No changes made.


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