AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2023 Issue 4; New/Revised ICD-10-CM Codes
Bronchiolitis Obliterans and Bronchiolitis Obliterans Syndrome
Subcategory J44.8, Other specified chronic obstructive pulmonary disease, has been created with codes J44.81, Bronchiolitis obliterans and bronchiolitis obliterans syndrome, and J44.89, Other specified chronic obstructive pulmonary disease. Bronchiolitis obliterans (BO), also known as obliterative bronchiolitis or constrictive bronchiolitis, is a type of obstructive lung disease that affects the bronchioles, the smallest airways in the lungs. In this condition, the airways become inflamed, damaged, and then scarred. BO can occur due to infections, inhalation of certain toxic chemicals, and systemic or autoimmune diseases. However, it most commonly occurs after lung transplantation as a manifestation of...
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