AMA CPT® Assistant - 2026 Issue 5 (May)
Reporting Sub-Scalp Continuous EEG Monitoring Services (1004T-1009T)
May 2026 page 30 Reporting Sub-Scalp Continuous EEG Monitoring Services ( 1004T - 1009T ) For the CPT 2026 code set, six new Category III codes ( 1004T - 1009T ) were established to report continuous electroencephalogram (EEG) monitoring services. Although there were existing codes for the surgical implantation, revision, replacement, and removal of a sub-scalp continuous EEG monitoring system ( 0956T - 0960T ) before 2026, there were no specific codes available to report the interpretation of data from the monitoring devices. The establishment of the new codes ( 1004T - 1009T ) fills that coding gap. In...
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Article Overview
This article explains the 2026 CPT Category III additions for sub-scalp continuous EEG monitoring and the surrounding guidance added to support reporting. It is intended for coders, billers, and clinicians working with implantable EEG monitoring workflows and device-related interpretation services. The article covers the new code family, related existing implant, revision, replacement, and removal codes, plus the accompanying subsection, parenthetical notes, and clinical examples.
Why This Topic Matters
These updates clarify how services tied to implantable sub-scalp EEG monitoring are organized in CPT 2026. Understanding the article helps readers recognize the scope of the new reporting framework and the related code structure.
Article Sections
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May 2026 page 30
The opening section identifies the source publication context and introduces the topic of sub-scalp continuous EEG monitoring reporting updates.
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Category III Codes
This section introduces the new Category III code family and explains the broader reporting area covered by the update.
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Implantable Sub-Scalp Continuous Bilateral Electroencephalography Monitoring System
This section describes the monitoring system, its general workflow, and how the device data are captured and transmitted for later review.
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Clinical Example (1004T) / Description of Procedure (1004T)
This combined section presents a representative scenario and procedure workflow associated with one of the new monitoring-related codes.
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Clinical Example (1005T) / Description of Procedure (1005T)
This combined section presents a representative scenario and procedure workflow associated with one of the new monitoring-related codes.
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Clinical Example (1006T) / Description of Procedure (1006T)
This combined section presents a representative scenario and procedure workflow associated with one of the new monitoring-related codes.
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Clinical Example (1007T) / Description of Procedure (1007T)
This combined section presents a representative scenario and procedure workflow associated with one of the new monitoring-related codes.
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Clinical Example (1008T) / Description of Procedure (1008T)
This combined section presents a representative scenario and procedure workflow associated with one of the new monitoring-related codes.
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Clinical Example (1009T) / Description of Procedure (1009T)
This combined section presents a representative scenario and procedure workflow associated with one of the new monitoring-related codes.
What You Will Learn
- How the 2026 CPT Category III update is organized for sub-scalp continuous EEG monitoring services.
- What general types of device-related services and monitoring workflows are addressed by the article.
- How the article frames the relationship between the new code family and existing implant/removal-related codes.
- What kinds of guideline clarifications and clinical examples accompany the new reporting structure.
Who Should Read This
- Medical coders
- Coding auditors
- Billing professionals
- Health information management professionals
- Neurology practice staff
- Clinicians involved in EEG monitoring
Codes Discussed
Code Ranges Discussed
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