ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesJ44.81

J44.81

Bronchiolitis obliterans and bronchiolitis obliterans syndrome

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 J44.81 is a billable code used to indicate a diagnosis of bronchiolitis obliterans and bronchiolitis obliterans syndrome.

Key Diagnostic Point:

Bronchiolitis obliterans (BO) and bronchiolitis obliterans syndrome (BOS) are serious respiratory conditions characterized by the obstruction of the small airways (bronchioles) due to inflammation and scarring. Clinically, patients may present with progressive dyspnea, cough, and wheezing, often following a viral infection, exposure to toxic substances, or as a complication of lung transplantation. The anatomy involved includes the bronchioles, which are the smallest air passages in the lungs, leading to the alveoli where gas exchange occurs. Disease progression can lead to significant respiratory compromise and may result in pulmonary fibrosis. Diagnostic considerations include pulmonary function tests (PFTs) that reveal obstructive patterns, high-resolution computed tomography (HRCT) scans showing airway changes, and sometimes lung biopsies. Early diagnosis is crucial for management, which may involve corticosteroids, immunosuppressive therapy, or lung transplantation in severe cases.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors
  • Documentation gaps
  • Billing challenges

Specialty Focus

Medical Specialties

Pulmonology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Transplant medicine

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Bronchiolitis obliterans and bronchiolitis obliterans syndrome significantly impact patient quality of life and can lead to increased healthcare utilization due to frequent hospitalizations and the need for specialized care. These conditions are particularly relevant in populations with a history of lung transplantation or significant environmental exposures. Understanding the epidemiology of these diseases can help in developing targeted interventions and improving overall respiratory health outcomes.

ICD-9 vs ICD-10

Bronchiolitis obliterans and bronchiolitis obliterans syndrome significantly impact patient quality of life and can lead to increased healthcare utilization due to frequent hospitalizations and the need for specialized care. These conditions are particularly relevant in populations with a history of lung transplantation or significant environmental exposures. Understanding the epidemiology of these diseases can help in developing targeted interventions and improving overall respiratory health outcomes.

Reimbursement & Billing Impact

Reimbursement considerations include ensuring that the diagnosis is clearly linked to the services provided. Common denials may arise from insufficient documentation or failure to demonstrate medical necessity. Best practices include maintaining thorough clinical notes and ensuring that all relevant diagnostic tests are documented and justified.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for J00-J99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for J00-J99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by J44.81?

J44.81 encompasses bronchiolitis obliterans and bronchiolitis obliterans syndrome, which are characterized by the obstruction of the bronchioles due to inflammation and fibrosis. These conditions may arise from various etiologies, including post-infectious processes, exposure to environmental toxins, or as a complication of lung transplantation.

When should J44.81 be used instead of related codes?

J44.81 should be used when the clinical presentation aligns specifically with bronchiolitis obliterans or bronchiolitis obliterans syndrome, particularly when there is evidence of airway obstruction and associated symptoms. It is important to differentiate it from other chronic obstructive pulmonary diseases that do not involve the same pathophysiological changes.

What documentation supports J44.81?

Documentation for J44.81 should include clinical notes detailing the patient's symptoms, diagnostic imaging results, pulmonary function test results, and any relevant history of lung transplantation or exposure to known risk factors. Comprehensive documentation of treatment plans and responses is also critical.