Summary & Overview
CPT 95819: Electroencephalogram Recording Awake and Asleep
CPT code 95819 is a critical billing code for electroencephalogram (EEG) procedures that involve recording brain activity during both awake and asleep states, often with additional stimulation techniques such as hyperventilation or photic stimulation. This code is widely used in neurology and electroencephalography practices to assess and diagnose a range of neurological disorders, including epilepsy, convulsions, and syncope. The procedure is commonly performed in office and hospital outpatient settings, reflecting its importance in both routine and acute neurological evaluations.
Major national payers covering this service include Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare. The publication provides a comprehensive overview of payer coverage, relevant clinical indications, and associated billing modifiers. Readers will gain insights into current policy updates, clinical benchmarks, and the broader context of EEG utilization in neurological care. The summary also highlights related CPT codes and associated physician taxonomies, offering a clear understanding of how this procedure fits within the spectrum of neurodiagnostic services. This information is essential for stakeholders seeking to understand the national landscape of EEG billing and coverage.
CPT Code Overview
CPT code 95819 represents an electroencephalogram (EEG) procedure that includes recording both awake and asleep states. This comprehensive EEG may involve hyperventilation and/or photic stimulation when clinically appropriate. The service is typically performed in a neurology or electroencephalography setting, with common sites of service including the office (POS 11) or hospital outpatient (POS 22) environments. This procedure is essential for evaluating and diagnosing neurological conditions that affect brain activity.
Clinical & Coding Specifications
Clinical Context
A patient presents to a neurology clinic or hospital outpatient department with episodes of unexplained loss of consciousness, convulsions, or disorientation. The neurologist orders an electroencephalogram (EEG) to evaluate for possible epilepsy, seizure disorders, or other neurological conditions. The procedure involves recording the patient's brain electrical activity while awake and asleep, including hyperventilation and photic stimulation when appropriate. The EEG is performed by a neurology or psychiatry physician, and the results are interpreted to assist in diagnosis and management.
Coding Specifications
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Modifiers:
- Modifier
26: Used when reporting only the professional component (interpretation and report) of the EEG procedure. - Modifier
TC: Used when reporting only the technical component (equipment, technician, and supplies) of the EEG procedure. - Modifier
52: Used when the service is performed but reduced in scope (e.g., incomplete recording).
- Modifier
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Provider Taxonomies:
Taxonomy Code Specialty Name 2084N0400XNeurology Physician 2084P0800XPsychiatry Physician 2084D0003XNeuromuscular Medicine Physician
These taxonomies represent the specialties typically involved in performing and interpreting EEG procedures.
Related Diagnoses
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G40.909: Epilepsy, unspecified, not intractable, without status epilepticus- Relevant for patients with suspected or confirmed epilepsy, where EEG helps in diagnosis and management.
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R56.9: Unspecified convulsions- Used for patients presenting with convulsive episodes of unknown cause; EEG assists in evaluation.
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G40.309: Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus- Indicates specific epilepsy syndromes; EEG is essential for diagnosis and classification.
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R41.0: Disorientation, unspecified- For patients with episodes of disorientation; EEG may help rule out seizure activity or other neurological causes.
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R55: Syncope and collapse- Used when patients experience fainting or collapse; EEG can help differentiate between neurological and non-neurological causes.
Related CPT Codes
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95812: Electroencephalogram (EEG); including recording awake and drowsy (including hyperventilation and/or photic stimulation when appropriate)- Used for EEG recordings when the patient is awake and drowsy, but not asleep. Often an alternative to
95819when sleep is not recorded.
- Used for EEG recordings when the patient is awake and drowsy, but not asleep. Often an alternative to
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95813: Data not available in the input. -
95816: Electroencephalogram (EEG); including recording awake and drowsy (including hyperventilation and/or photic stimulation when appropriate)- Similar to
95812, used for EEG recordings in awake and drowsy states. May be used as an alternative or in conjunction with95819depending on clinical need.
- Similar to
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95822: Data not available in the input.
Codes 95812 and 95816 are commonly used as alternatives to 95819 when sleep recording is not required. 95819 is selected when both awake and asleep states are recorded.
National Reimbursement Benchmarks
Medicare's national mean rate for CPT code 95819 is $336.25, which is lower than the BUCA (Blue Cross Blue Shield, UnitedHealth Group, Cigna, Aetna) commercial average of $367.77. Among the commercial payers, Cigna and UnitedHealth Group report the highest mean rates, both above $430, while Aetna is the lowest at $318.74.
Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies significantly across payers. Aetna has the tightest range at $96.64, indicating less variability in rates, while Cigna shows the widest spread at $259.00, reflecting greater rate variability. Medicare's range is also substantial at $425.00, largely due to its low 25th percentile value.
The table and chart below present a detailed breakdown of national mean rates and percentile values for each payer.
Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.