Reactive Airway Disease ICD-10-CM Codes | 2025

Reactive Airway Disease ICD-10-CM Codes | 2025

Get accurate ICD-10-CM coding guidance for Reactive Airway Disease to support clinical decisions and patient care.

By Audrey Liz Perez on Aug 8, 2025.

Fact Checked by Ericka Pingol.

Use Code

What ICD-10 codes are used for reactive airway disease?

Reactive Airway Disease (RAD) refers to a condition characterized by reversible airway constriction and inflammation in response to various stimuli. It is commonly associated with asthma and shares similar symptoms. Accurate coding of RAD is crucial for proper diagnosis and effective management. Here are some commonly used ICD-10-CM codes for Reactive Airway Disease:

J40 – Bronchitis, not specified as acute or chronic

Captures non-specific cases of bronchitis, especially when there is no clear indication of chronicity, often used in initial presentations of reactive airway disease.

J44.9 – Chronic obstructive pulmonary disease, unspecified

Used when chronic obstructive lung disease is present but not further specified. May reflect overlapping features with reactive airways dysfunction syndrome.

J45.20 - Mild intermittent asthma

This code is used when a patient exhibits occasional asthma symptoms with minimal impairment of daily activities. It signifies a milder form of RAD.

J45.21 - Mild persistent asthma

This code is assigned when a patient experiences asthma symptoms more frequently, impacting their daily activities more than intermittent asthma.

J45.31 - Moderate persistent asthma

Patients with this code experience asthma symptoms more regularly and with greater severity than those with intermittent asthma. Their daily activities are moderately affected.

J45.41 - Severe persistent asthma

Patients assigned this code experience frequent and severe asthma symptoms, which persist over time and severely limit their daily activities.

J45.50 - Corticosteroid-dependent asthma

This code is used when a patient's asthma requires long-term treatment with corticosteroids to maintain control and prevent exacerbations.

J45.901 – Unspecified asthma with (acute) exacerbation

Assigned when the patient experiences worsening asthma symptoms, often used when reactive airway symptoms are severe or triggered by irritants.

J45.909 – Unspecified asthma, uncomplicated

Used when the patient has asthma symptoms without specific classification. This is often the default code for reactive airway disease ICD-10 documentation.

J68.0 – Bronchitis and pneumonitis due to chemicals, gases, fumes, and vapors

Applied when exposure to chemicals, gases, or fumes results in airway inflammation or respiratory distress.

J67.9 – Hypersensitivity Pneumonitis Due to Unspecified Organic Dust

Used for inflammatory lung responses triggered by organic dust exposure, including allergic alveolitis and related occupational diseases.

J98.01 - Acute bronchospasm

While not specific to RAD, this code may be used when a patient experiences sudden and severe bronchospasm, a hallmark of reactive airway disease.

Which Reactive Airway Disease ICD codes are billable: 

All the codes above are valid and billable under the ICD-10-CM system. These codes reflect varying presentations of reactive airway disease and should be selected based on documented symptoms, triggers, and clinical evaluation.

Clinical information

Reactive Airway Disease refers to a set of symptoms and conditions rather than a single diagnosis. It is frequently used as a placeholder when patients present with wheezing, shortness of breath, difficulty breathing, and coughing, often due to environmental triggers such as gases, fumes, dust, or allergens.

The underlying conditions may include asthma, chronic bronchitis, hypersensitivity pneumonitis, or chronic obstructive pulmonary disease (COPD). Exposure to chemicals, organic dust, or other external agents often leads to inflammation of the airways, especially in occupational or environmental health settings. Diagnostic evaluation includes physical examination, pulmonary function tests, imaging, and review of medical history.

Management typically involves inhaled corticosteroids, bronchodilators, and removal or avoidance of triggers. Long-term follow-up is essential in cases progressing to chronic obstructive lung disease or asthmatic bronchitis.

Synonyms include

  • Reactive airway disease
  • Reactive airways dysfunction syndrome
  • Unspecified asthma
  • Bronchitis due to chemicals or dust
  • Airway inflammation due to external agents
  • Hypersensitivity pneumonitis
  • Asthmatic bronchitis
  • Chronic bronchitis NOS

Popular search terms for this ICD cluster

  • Reactive airway disease ICD-10
  • Airway disease due to chemicals
  • COPD diagnosis code
  • Pneumonitis due to organic dust
  • Chronic respiratory inflammation
  • Unspecified respiratory condition

Commonly asked questions

The diagnosis of RAD is typically made based on the patient's medical history, symptoms, physical examination, and pulmonary function tests. Diagnostic tests, such as bronchoprovocation or allergy testing, may be conducted to assess airway reactivity or identify triggers.

Common symptoms of RAD include coughing, wheezing, shortness of breath, chest tightness, and difficulty breathing. These symptoms may be triggered by exposure to allergens, irritants, exercise, or respiratory infections.

The treatment of RAD aims to control symptoms, reduce airway inflammation, and prevent exacerbations. It often includes bronchodilators (such as short-acting beta-agonists), inhaled corticosteroids, leukotriene modifiers, and environmental modifications (e.g., avoiding triggers, improving indoor air quality).

Related ICDs

EHR and practice management software

Get started for free

*No credit card required

Start for free

Free

$0/usd

Unlimited clients

Telehealth

1GB of storage

Client portal text

Automated billing and online payments