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v1.0.0
ICD-10 Guide
DiagnosesObstructive Sleep Apnea

Obstructive Sleep Apnea

ICD-10 Coding for Obstructive Sleep Apnea(G47.33)

PRIMARY SPECIALTYSleep Medicine
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Obstructive Sleep Apnea?
Essential facts and insights about Obstructive Sleep Apnea

Key Clinical Considerations:

  • Excessive daytime sleepiness
  • Loud snoring
  • Observed episodes of breathing cessation during sleep
  • Morning headaches
  • Difficulty concentrating

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history of sleep patterns and symptoms
  • Results from polysomnography (sleep study)
  • Assessment of comorbid conditions (e.g., obesity, hypertension)
  • Use of specific terminology such as 'apnea-hypopnea index (AHI)'

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for AHI classification (mild, moderate, severe)
  • Common errors include incorrect coding of severity and not documenting comorbidities

Code Exclusions

Important Exclusions

  • Central sleep apnea
  • Sleep-related hypoventilation
  • Other sleep disorders such as insomnia

Related ICD-10 Codes

Primary Codes
G47.33
Obstructive sleep apnea (adult) (pediatric)
Ancillary Codes
R06.81
Z87.891
Differential Codes
G47.31

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Sleep Medicine

Specialty Applications

  • Adults and children with suspected sleep apnea
  • Sleep medicine clinics, primary care settings, and sleep labs

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

What are the documentation requirements?

Document patient history, symptoms, and results from sleep studies.

What are the billing considerations?

Ensure accurate coding and documentation to support medical necessity for sleep studies.