Other interstitial pulmonary diseases with fibrosis in diseases classified elsewhere

**Inclusion terms:** - Interstitial pneumonia (nonspecific) (usual) due to collagen vascular disease - Interstitial pneumonia (nonspecific) (usual) in diseases classified elsewhere - Organizing pneumonia due to collagen vascular disease - Organizing pneumonia in diseases classified elsewhere

**Code first:** - underlying disease, such as: - progressive systemic sclerosis (M34.0) - rheumatoid arthritis (M05.00-M06.9) - systemic lupus erythematosis (M32.0-M32.9)