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v1.0.0
ICD-10 Guide
DiagnosesLow Oxygen Saturation

Low Oxygen Saturation

ICD-10 Coding for Low Oxygen Saturation(R09.89, J96.01)

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

Diagnosis Overview

What is Low Oxygen Saturation?
Essential facts and insights about Low Oxygen Saturation

Key Clinical Considerations:

  • Cyanosis, shortness of breath, fatigue
  • Pulse oximetry showing saturation < 90%, arterial blood gas analysis
  • Decreased breath sounds, use of accessory muscles, tachypnea

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient's oxygen saturation levels, clinical symptoms, and treatment plan
  • ICD-10 terminology such as 'Hypoxemia' or 'Hypoxia'
  • Example: 'Patient presented with oxygen saturation of 85% on room air.'

Coding Guidelines

Usage Guidelines & Examples

  • Ensure correct use of R09.02 for hypoxemia versus J96.00 for respiratory failure.
  • Common errors include misclassifying hypoxemia as a chronic condition.

Code Exclusions

Important Exclusions

  • Conditions like COPD exacerbation, pneumonia that may have separate codes
  • Alternative codes for specific causes of hypoxia

Related ICD-10 Codes

Primary Codes
R09.02
Hypoxemia
J96.00
Acute respiratory failure, unspecified
Differential Codes
J96.01
R09.89

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Pulmonology

Specialty Applications

  • Patients with chronic lung diseases, acute respiratory conditions
  • Emergency departments, pulmonology clinics, inpatient settings

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

Documentation requirements?

Document oxygen saturation levels, symptoms, and interventions.

Billing considerations?

Ensure accurate coding to reflect severity and treatment provided.