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Obstructive Sleep Apnea ICD 10 – G47.33


Obstructive Sleep Apnea (OSA), identified by ICD-10 code G47.33, is a prevalent and serious sleep disorder characterized by repeated interruptions in breathing due to the relaxation of throat muscles blocking the airway. This condition poses significant health risks, including cardiovascular diseases and chronic fatigue, necessitating timely and precise medical intervention. 

For healthcare providers, accurate coding of OSA under ICD-10 G47.33 is not just a billing requirement but a critical step in ensuring optimal reimbursement and effective patient care. 

Proper documentation and coding facilitate fair compensation from insurers, reflecting the true complexity of managing OSA and supporting better patient outcomes through tailored treatments and interventions.

What is Sleep Apnea?

Sleep apnea is a sleep disorder that disrupts breathing patterns during sleep. It is characterized by repeated pauses in breathing or shallow breaths, which can last from a few seconds to a few minutes. These interruptions can occur multiple times an hour, leading to poor sleep quality and various health complications. 

There are three main types of sleep apnea: obstructive, central, and complex. Obstructive Sleep Apnea (OSA) is the most common form, caused by the relaxation of throat muscles, whereas central sleep apnea involves the brain failing to send proper signals to the muscles that control breathing. 

Sleep apnea can affect anyone, but certain factors such as obesity, age, and genetics increase the risk.


  • Obstructive Sleep Apnea Syndrome: Loud snoring, breathing pauses, gasping or choking, morning headache, daytime sleepiness.
  • Chronic Respiratory Failure: Shortness of breath, difficulty lying flat, fatigue, cyanosis.
  • Acute Hypercapnic Respiratory Failure: Confusion, lethargy, headache, shortness of breath.
  • Hypercapnia: Fatigue, headache, focus issues, shortness of breath.
  • Pediatric Obstructive Sleep Apnea: Snoring, bedwetting, night sweats, learning and behavioral problems.
  • Adult Obstructive Sleep Apnea: Snoring, breathing pauses, gasping or choking, morning headaches, daytime sleepiness.
  • Severe Pediatric Obstructive Sleep Apnea: Waking difficulty, poor academic performance, attention deficit, growth issues.

ICD 10 Code for Obstructive Sleep Apnea

The ICD-10 code for Obstructive Sleep Apnea is G47.33, which applies to both adult and pediatric cases of this sleep disorder. This billable code is crucial for the accurate diagnosis and reimbursement of Obstructive Sleep Apnea in the healthcare industry. 

By using ICD-10 code G47.33, healthcare providers can ensure they receive appropriate compensation for their services, reflecting the complexity and necessity of the treatment provided. 

This code has replaced the corresponding ICD-9 code 327.23, streamlining the process and enhancing the precision of medical billing and record-keeping. 

Importance of ICD 10 in Managing Sleep Apnea

The ICD-10 (International Classification of Diseases, 10th Revision) plays a vital role in managing sleep apnea by providing a standardized coding system for diagnosing and treating this condition. 

Accurate ICD-10 coding, such as G47.33 for Obstructive Sleep Apnea, ensures that healthcare providers can effectively communicate diagnoses, streamline patient management, and facilitate appropriate billing and reimbursement processes. 

It also supports healthcare data analysis, improving research and public health strategies related to sleep disorders.

  • Standardization: Ensures consistent and accurate diagnosis across healthcare providers.
  • Effective Communication: Facilitates clear communication among medical professionals.
  • Patient Management: Helps organize and plan patient care.
  • Billing and Reimbursement: Ensures proper compensation for services rendered.
  • Data Analysis: Enhances research and public health strategies.
  • Quality of Care: Contributes to improved patient outcomes through precise treatment plans.

Other Commonly Used ICD-10 Codes for Sleep Apnea

In addition to G47.33 for Obstructive Sleep Apnea, there are several other ICD-10 codes that healthcare providers commonly use to diagnose and manage different forms of sleep apnea. 

Each code corresponds to a specific type of sleep apnea, helping clinicians accurately identify and treat the condition based on its unique characteristics. Proper use of these codes ensures precise diagnosis, effective treatment plans, and appropriate billing for services rendered.


G47.30: Sleep Apnea, Unspecified

  • Used when the specific type of sleep apnea is not determined.
  • Ensures patients receive initial evaluation and management for sleep-related breathing disorders.

G47.31: Primary Central Sleep Apnea

  • Refers to sleep apnea caused by the brain’s failure to send proper signals to the muscles controlling breathing.
  • It helps in identifying patients who may benefit from advanced neurological evaluation and intervention.

G47.32: High Altitude Periodic Breathing

  • Describes sleep apnea that occurs due to high altitude, where lower oxygen levels affect breathing patterns.
  • Useful for diagnosing and managing travelers or residents in high-altitude areas.

G47.34: Idiopathic Sleep-Related Nonobstructive Alveolar Hypoventilation

  • Refers to inadequate ventilation during sleep without an obstructive cause.
  • Aids in identifying cases needing specialized respiratory therapy and monitoring.

G47.35: Congenital Central Alveolar Hypoventilation Syndrome

  • A rare genetic disorder affecting the automatic control of breathing.
  • Essential for early diagnosis and long-term management in pediatric and genetic contexts.

G47.37: Central Sleep Apnea in Conditions Classified Elsewhere

  • Indicates central sleep apnea that occurs as a secondary condition to other medical issues.
  • Facilitates comprehensive treatment plans addressing both the primary and secondary conditions.

G47.39: Other Sleep Apnea

  • It covers any other forms of sleep apnea that are not specifically classified under other codes.
  • Ensures all types of sleep apnea are appropriately documented and managed.

Is G47.33 Billable?

G47.33 is a billable ICD-10 code used for Obstructive Sleep Apnea (OSA). This code is essential for healthcare providers as it facilitates accurate documentation and billing for the diagnosis and treatment of OSA. By using G47.33, providers can ensure they receive appropriate reimbursement from insurance companies, reflecting the complexity and necessity of the care provided. 


The ICD-10 code G47.33 for obstructive sleep apnea is crucial for accurate diagnosis, effective patient management, and proper reimbursement in the healthcare industry. Utilizing this code ensures standardized communication among healthcare providers and facilitates comprehensive care for patients suffering from obstructive sleep apnea. 

Understanding and correctly implementing ICD-10 coding not only enhances clinical outcomes but also streamlines the billing process, ensuring that healthcare providers are fairly compensated for their services.

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