ICD-10 Guide

Chronic Obstructive Airway Disease

ICD-10 Coding for Chronic Obstructive Airway Disease(J44.0, J44.1, J44.9)

PRIMARY SPECIALTYPulmonology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Chronic Obstructive Airway Disease?

Essential facts and insights about Chronic Obstructive Airway Disease

Clinical Information

Coding Guidelines

Usage Guidelines & Examples

Specialty Focus

Primary Specialty

Pulmonology

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

Chronic Obstructive Airway Disease

Diagnosis Overview

Clinical Information

Coding Guidelines

Usage Guidelines & Examples

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Chronic Obstructive Airway Disease

Diagnosis Overview

Clinical Information

Coding Guidelines

Usage Guidelines & Examples

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues