Summary & Overview
CPT 94762: Overnight Pulse Oximetry Monitoring
CPT code 94762 covers overnight pulse oximetry monitoring in which a provider monitors a patient’s oxygen saturation using a sensor on the ear or finger. This code captures a commonly used diagnostic service for assessing nocturnal hypoxemia, sleep-disordered breathing, and oxygenation in patients with cardiopulmonary or sleep-related conditions. Nationally, use of overnight oximetry affects care pathways by informing need for further testing, supplemental oxygen, or sleep medicine referrals.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines coverage and billing considerations across these major payers and summarizes common modifiers used with this service. Readers will find an executive overview of clinical context, typical sites of service, and the operational implications for labs and clinics that perform home or in-facility overnight oximetry. The piece also highlights benchmarks and policy updates where available, and clarifies where input data is not available.
This summary provides clinicians, billing staff, and policy analysts with a concise reference to understand what CPT code 94762 represents, which payers are relevant to national coverage discussions, and what to expect when evaluating overnight oxygen saturation monitoring in practice.
Billing Code Overview
CPT code 94762 describes overnight monitoring of a patient’s oxygen saturation using a sensor placed on the ear or finger. This service involves continuous or intermittent pulse oximetry recording during sleep to assess nocturnal oxygenation.
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Service type: Overnight pulse oximetry monitoring
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Typical site of service: Sleep laboratory, outpatient clinic, or hospital setting where overnight physiological monitoring is performed
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves an adult or pediatric patient referred for overnight monitoring of oxygen saturation due to suspected or known sleep-disordered breathing, nocturnal hypoxemia from chronic lung disease, or unexplained daytime fatigue and witnessed apneas. The provider places a noninvasive pulse oximeter sensor on the patient’s finger or ear before sleep and programs continuous overnight recording. A respiratory therapist or sleep technologist educates the patient on sensor placement and alarms, ensures device functionality, and documents start and stop times. The device records continuous oxygen saturation (SpO2) and pulse rate; data are retrieved the next day for interpretation by the ordering clinician (pulmonologist, sleep medicine physician, or primary care provider). Typical workflow includes: patient check-in, sensor application, device setup, overnight unattended monitoring at home or in an accredited sleep center, data download, quality review, and clinician interpretation for diagnosis and management planning.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure | Use when a distinct E/M visit is provided on the same day as the monitoring device setup or interpretation visit. |
26 |