Find policies, billing codes, payers, states, and providers
CPT 95805: Attended Overnight Polysomnography Sleep Study
CPT code 95805 denotes an attended overnight diagnostic sleep study that measures wakefulness and physiological parameters while a patient sleeps in a laboratory. The procedure is a core diagnostic tool in sleep medicine for identifying sleep-related breathing and arousal disorders and guides clinical management for conditions such as hypoventilation and disorder-related hypersomnolence. Nationally, the code is important for standardizing coverage and payment for polysomnography services delivered in accredited sleep laboratories and sleep centers.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare. Readers will find an overview of the clinical context for the service, how the code maps to typical sites of service, and comparisons to closely related polysomnography CPT codes used for varying monitoring complexity and therapeutic initiation.
This publication provides benchmarks for service classification, outlines the clinical indications associated with overnight attended sleep studies, and summarizes how the code fits within common billing groupings and related procedural codes. The content is intended for billing managers, sleep medicine clinicians, and policy analysts seeking a concise reference on the clinical role and billing context of CPT code 95805 at a national level.
Customize your policy alerts
Sign up for cpt 95805 policy alerts
Get alerted when payer policies referencing 95805 are released or updated.
Monitor payer policy activity
Billing Code Overview
CPT code 95805 describes an attended overnight sleep study in a laboratory setting in which the provider measures the patient’s sleepiness and wakefulness and evaluates physiological parameters while the patient sleeps. This service is a diagnostic polysomnography-type procedure used to assess sleep disorders by monitoring multiple physiologic signals during an attended sleep period.
Service type: Diagnostic sleep study / polysomnography
Typical site of service: Sleep laboratory or accredited sleep center (inpatient or outpatient sleep lab)
National Reimbursement Benchmarks
Medicare’s mean rate of $334.10 sits below BUCA’s average commercial mean of $1,227.70, indicating that commercial BUCA reimbursement for CPT 95805 is substantially higher than the Medicare average. That gap highlights how commercial networks can pay multiples of Medicare for this service; Medicare’s distribution also shows notable spread across 47 localities with a P25 of $60.50 and a P75 of $481.50.
Examining P75 minus P25 as a simple dispersion metric, Blue Cross Blue Shield has the tightest interquartile spread at $480.90 (P75 $1,971.20 minus P25 $1,491.30), while UnitedHealth Group shows a wide spread of $502.90 (P75 $645.10 minus P25 $146.20). Cigna’s IQR is $609.30, Aetna’s is $335.30, and BUCA’s is $506.00; Medicare’s IQR is $421.00. These differences reflect varying regional and contractual variability across payers.