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CPT 95822: Electroencephalogram in Coma or Sleep
CPT code 95822 identifies an electroencephalogram (EEG) specifically performed when a patient is in a coma or asleep. This targeted EEG service is clinically important for evaluating brain function in altered levels of consciousness, guiding diagnostic decisions for conditions such as encephalopathy, coma, and seizure disorders. Nationally, accurate coding for these specialized EEGs affects clinical documentation, utilization tracking, and appropriate reimbursement for neurodiagnostic services.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical context for 95822, how it relates to other EEG codes, and the payer landscape relevant to coverage and claims processing. The publication covers typical sites of service and the clinical scenarios that prompt use of this code.
This summary provides actionable reference material for billing and clinical teams seeking clarity on code purpose and positioning within EEG services. It does not offer procedural guidance or clinical recommendations but focuses on coding definition, service context, and the payer environment readers can expect when billing CPT code 95822 nationally.
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Billing Code Overview
CPT code 95822 describes an electroencephalogram (EEG) performed when the patient is in a state of coma or asleep. The procedure uses small electrodes attached to the scalp to record the brain's electrical activity while the patient is unconscious or sleeping, providing diagnostic information about cerebral function in altered levels of consciousness.
Service type: Diagnostic neurophysiology procedure (EEG) performed in coma or sleep state.
Typical site of service: Inpatient hospital or acute care setting; may also be performed in intensive care units or specialized neurodiagnostic units where patients are monitored in a comatose or sleep state.
National Reimbursement Benchmarks
National means place Blue Cross Blue Shield and BUCA noticeably above Medicare: Blue Cross Blue Shield’s mean of $534.40 and BUCA’s mean of $458.40 compare to Medicare’s mean of $311.50, indicating average commercial reimbursements for CPT 95822 are substantially higher than the Medicare average. This gap highlights a commercial-to-Medicare spread of $142.90 between BUCA and Medicare, and $222.90 between Blue Cross Blue Shield and Medicare.
Dispersion (P75 minus P25) varies by payer: Blue Cross Blue Shield’s spread is $243.00 (from $371.60 to $615.60) and BUCA’s spread is $288.70 (from $262.00 to $570.70), while UnitedHealth Group’s spread is $419.40 (from $136.80 to $557.20), Cigna’s is $449.70 (from $124.70 to $574.40), and Aetna’s is $300.00 (from $85.60 to $399.00). Medicare’s interquartile span is $388.50 (from $60.00 to $448.50). Cigna and UnitedHealth Group show the widest IQRs, indicating the greatest mid-distribution variability, while Blue Cross Blue Shield is among the tightest.