CurrentOklahoma Health Care AuthorityPolicy N/A

Digital Analysis of Electroencephalogram (EEG)

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Coverage and medical review for CPT 95957 when substantial additional digital EEG analysis is medically necessary to evaluate possible epileptic spikes or seizures or support presurgical evaluation of intractable epilepsy.

Policy Summary

PayerOklahoma Health Care Authority

PolicyDigital Analysis of Electroencephalogram (EEG)

Policy CodePolicy N/A

Change TypeRevision of existing criteria

Effective Date3/1/2025

Next Review DateMarch 2028

Key ActionSubmit documentation showing an eligible clinical indication and substantial additional digital EEG analysis for CPT 95957.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

1Covered CPT code

1 hourAdditional technician work

20-30 minAdditional physician review

2Denial triggers

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CurrentOklahoma Health Care AuthorityPolicy N/A

Digital Analysis of Electroencephalogram (EEG)

Customize your policy alerts

Sign up for all Oklahoma Health Care Authority policy alerts

Know when Oklahoma Health Care Authority releases new policies or updates existing guidance.

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Policy Summary

PayerOklahoma Health Care Authority

PolicyDigital Analysis of Electroencephalogram (EEG)

Policy CodePolicy N/A

Change TypeRevision of existing criteria

Effective Date3/1/2025

Next Review DateMarch 2028

Key ActionSubmit documentation showing an eligible clinical indication and substantial additional digital EEG analysis for CPT 95957.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

1Covered CPT code

1 hourAdditional technician work

20-30 minAdditional physician review

2Denial triggers

Initial approval criteria

Covered when all of the following are met:

All approval requirements

Eligible clinical indication
- Inconclusive long-term EEG: The long-term EEG is inconclusive and additional testing for possible epileptic spikes or seizures is needed.
- Presurgical epilepsy evaluation: Topographic voltage and dipole analysis is supported in a presurgical candidate with intractable epilepsy.
Substantial additional digital analysis: Documentation supports that substantial additional digital analysis was performed, such as data selection, quantitative software processing, and dipole source analysis.Generally, approximately 1 extra hour of technician processing and 20–30 minutes of physician review

CPT 95957 should not be reported solely because an EEG was recorded digitally, an automated spike or seizure detector was activated, or the study was performed on a digital rather than an analog machine. These features alone do not establish substantial additional digital analysis.

Automated spike and seizure detection and trending software are bundled into the codes for long-term EEG and are not separately reimbursable.

Coding and Work Requirements

CPT Code Covered Requiring Medical ReviewCPTCovered

95957

Digital analysis of electroencephalogram (EEG) (e.g., for epileptic spike analysis)

Additional Coding Considerationsmixed

26	Professional component modifier; required for the professional component when billed with place of service 21-inpatient and when billed as a separate outpatient professional component line
TC	Technical component modifier; the technical component is covered under the facility payment for place of service 21-inpatient
740	Outpatient revenue code referenced for billing CPT 95957

Additional technician processing time

Typical additional workApproximately 1 extra hour of technician processing is generally required to process data from the digital EEG.

Additional physician review time

Typical physician review20–30 minutes of physician time is generally required to review the technician’s work and the resulting data.

Provider Documentation and Review

Prior Authorization

Medical Review Required

Coverage for CPT 95957 is subject to medical review. Approval requires the applicable clinical indication and documentation criteria to be met, including the required additional digital analysis.

CPT 95957 — Digital analysis of electroencephalogram (EEG), such as epileptic spike analysis.
Documentation must support either an inconclusive long-term EEG requiring additional testing for possible epileptic spikes or seizures, or topographic voltage and dipole analysis for a pre-surgical candidate with intractable epilepsy.
Documentation must also support substantial additional digital analysis. These approval requirements apply before coverage is authorized.

Documentation Required

Document Medical Necessity and Additional Analysis

Document medical necessity for the additional digital analysis and explain why the testing was required. The record must also substantiate that substantial additional analysis was performed.

For an inconclusive long-term EEG, document the need for additional testing for possible epileptic spikes or seizures.
For pre-surgical candidates with intractable epilepsy, document the need for topographic voltage and dipole analysis.
Describe the substantial additional digital analysis, including data selection, quantitative software processing, and dipole source analysis.

Documentation Required

Support Additional Technical and Physician Work

Support the additional technical and physician work with documentation showing the scope of the processing and review performed beyond the digital EEG itself.

Document the additional technician work to select data and process the digital EEG, generally involving approximately one extra hour.
Document the physician's additional review of the technician's work and the resulting data, generally involving an extra 20–30 minutes.
Include sufficient detail to demonstrate that the additional technical processing and physician analysis actually occurred.

Denial Risk

Insufficient Documentation May Result in Denial

Claims may be denied when the record does not adequately establish medical necessity for the additional digital analysis or does not demonstrate that significant additional analysis occurred.

Insufficient documentation of medical necessity for the additional digital analysis may result in denial.
Insufficient documentation demonstrating significant additional digital analysis occurred may result in denial.

Digital Analysis of Electroencephalogram (EEG)

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Digital Analysis of Electroencephalogram (EEG)

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Coverage Criteria

Coding and Work Requirements

Provider Documentation and Review

Background

Definitions