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Official Description

Polysomnography; younger than 6 years, sleep staging with 4 or more additional parameters of sleep, with initiation of continuous positive airway pressure therapy or bi-level ventilation, attended by a technologist

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Polysomnography is a comprehensive sleep study that is conducted to assess various sleep disorders in patients, particularly those younger than 6 years old. This procedure involves sleep staging, which is the classification of different sleep phases, and is performed by a trained sleep technologist. The primary goal of polysomnography is to evaluate and diagnose a range of sleep-related issues, including but not limited to sleep apnea, narcolepsy, insomnia, sleepwalking, restless leg syndrome, and other periodic movements that may occur during sleep. The process of sleep staging utilizes several monitoring techniques, including electroencephalography (EEG), which records brain activity through electrodes placed on the scalp, electro-oculography (EOG) to track eye movements, and electromyography (EMG) to measure muscle tone, particularly under the chin. In addition to these core measurements, polysomnography captures four or more additional parameters that provide a comprehensive view of the patient's sleep state. These parameters may include heart rate and rhythm, airflow, respiratory effort, gas exchange metrics through oximetry or other methods, muscle activity, extended EEG monitoring, and other relevant factors such as snoring and body position. The data collected during the study is meticulously analyzed by a physician, who then provides a detailed written interpretation of the results. This thorough evaluation is essential for determining the appropriate treatment and management strategies for the patient's sleep disorder. It is important to note that specific coding is used to differentiate between various types of polysomnography based on the parameters measured and the interventions performed, such as continuous positive airway pressure (CPAP) therapy or bi-level ventilation.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure of polysomnography is indicated for the evaluation and diagnosis of various sleep disorders in patients younger than 6 years old. The specific conditions for which this procedure may be performed include:

  • Sleep Apnea A disorder characterized by repeated interruptions in breathing during sleep.
  • Narcolepsy A neurological disorder that affects the control of sleep and wakefulness, leading to excessive daytime sleepiness.
  • Insomnia Difficulty in falling or staying asleep, resulting in non-restorative sleep.
  • Sleepwalking A behavior disorder that originates during deep sleep and results in walking or performing other complex behaviors while asleep.
  • Restless Leg Syndrome A condition that causes an uncontrollable urge to move the legs, often accompanied by uncomfortable sensations.
  • Periodic Movements During Sleep Involuntary movements that occur during sleep, which can disrupt sleep quality.

2. Procedure

The polysomnography procedure involves several key steps to ensure comprehensive monitoring and accurate data collection. The following procedural steps are performed:

  • Step 1: Patient Preparation The patient is prepared for the study by ensuring that they are comfortable and informed about the procedure. Electrodes are placed on the scalp to conduct EEG, as well as electrodes around the eyes for EOG and under the chin for EMG to monitor muscle tone.
  • Step 2: Monitoring Setup Additional sensors are attached to monitor various parameters of sleep. This includes sensors for heart rate and rhythm, airflow, respiratory effort, and gas exchange metrics. The setup is designed to capture a comprehensive view of the patient's sleep state.
  • Step 3: Sleep Staging As the patient sleeps, the technologist monitors the different stages of sleep using the collected data. This involves analyzing brain activity, eye movements, and muscle tone to classify the sleep phases accurately.
  • Step 4: Data Collection Throughout the night, the polysomnography system records all relevant data, including the four or more additional parameters of sleep. This data is crucial for the subsequent analysis and interpretation by the physician.
  • Step 5: Intervention (if applicable) If continuous positive airway pressure (CPAP) therapy or bi-level ventilation is indicated, the appropriate equipment is applied. For CPAP, a nasal mask is fitted to maintain an open airway, while bi-level ventilation involves the use of a ventilator to assist with respiration.

3. Post-Procedure

After the completion of the polysomnography, the patient is typically monitored for a brief period to ensure their safety and comfort before discharge. The recorded data is then analyzed by a physician, who interprets the results and prepares a written report detailing the findings. This report is essential for determining the diagnosis and guiding further treatment options. Patients may be advised on follow-up appointments to discuss the results and any necessary interventions based on the findings of the sleep study. Additionally, any specific care instructions or recommendations for managing identified sleep disorders will be provided to the patient and their caregivers.

Short Descr POLYSOM <6 YRS CPAP/BILVL
Medium Descr POLYSOM <6 YRS SLEEP W/CPAP/BILVL VENT 4/> PARAM
Long Descr Polysomnography; younger than 6 years, sleep staging with 4 or more additional parameters of sleep, with initiation of continuous positive airway pressure therapy or bi-level ventilation, attended by a technologist
Status Code Active Code
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 1 - Diagnostic Tests for Radiology Services
Multiple Procedures (51) 0 - No payment adjustment rules for multiple procedures apply.
Bilateral Surgery (50) 0 - 150% payment adjustment for bilateral procedures does NOT apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 0 - Payment restriction for assistants at surgery applies to this procedure...
Co-Surgeons (62) 0 - Co-surgeons not permitted for this procedure.
Team Surgery (66) 0 - Team surgeons not permitted for this procedure.
Diagnostic Imaging Family 99 - Concept Does Not Apply
APC Status Indicator Procedure or Service, Not Discounted when Multiple
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) T2D - Other tests - other
MUE 1
CCS Clinical Classification 227 - Other diagnostic procedures (interview, evaluation, consultation)
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
Date
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2024-01-01 Changed Guideline added.
2013-01-01 Added Added
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