Evidence Checklist: Chronic Bronchitis

Pulmonary function tests (PFTs) with FEV-1 pre/post bronchodilatorCritical

Spirometry results showing FEV-1 values before and after bronchodilator use. The VA rates restrictive lung disease based on FEV-1, FEV-1/FVC ratio, and DLCO.

DLCO (diffusing capacity) testingCritical

Diffusion capacity of the lung for carbon monoxide, used to assess gas exchange impairment and determine rating level.

Nexus opinion linking bronchitis to service ("at least as likely as not")Critical

A medical opinion stating it is "at least as likely as not" that your chronic bronchitis is connected to in-service exposures (burn pits, chemicals, smoking) or events.

Chest imaging (X-ray or CT)

Chest X-ray or CT scan documenting bronchial wall thickening, hyperinflation, or other findings consistent with chronic bronchitis.

Ongoing treatment records (inhalers, medications, pulmonary rehab)

Records showing current treatment regimen including bronchodilators, corticosteroids, antibiotics for exacerbations, and pulmonary rehabilitation.

Buddy statement from spouse, family, or fellow service member

A written statement from someone who can describe observable symptoms and how your condition affects daily life.

Completed DBQ Respiratory ConditionsCritical

Standardized form capturing PFT results, treatment requirements, and functional impact of respiratory disease.

Documentation of in-service toxic exposure (burn pits, chemicals)

Service records, deployment orders, or PACT Act toxic exposure registry enrollment documenting exposure to burn pits, industrial chemicals, or other respiratory hazards.

Service treatment records (STRs)Critical

Military medical records showing in-service treatment, complaints, or injuries related to this condition.