Table 1 Interstitial lung diseases diagnoses proposed in the database

Exposure related ILD

Hypersensitivity pneumonitis

Aspiration pneumonitis

Medication or drug exposure

Others

Systemic disease-associated ILD

Connective tissue diseases

- Rheumatoid arthritis

- Systemic sclerosis

- Systemic lupus erythematosus

Pulmonary vasculitis

- Wegener’s granulomatosis

- Churg-Strauss syndrome

- Anti-glomerular basement membrane disease

- Langerhans’ cell histiocytosis

Others

Granulomatous diseases

Sarcoidosis

Crohn disease

Others

Metabolic disorders

Lysosomal diseases

- Niemann-Pick diseases

- Hermansky-Pudlak syndrome

- Gaucher's disease

Familial hypercalcemia with hypocalciuria

Others

Infectious ILD

Bacterial infection

Chlamydiae infection

Mycoplasma infection

Viral infection

Others

Alveolar disorder related ILD

Eosinophilic lung diseases

Alveolar microlithiasis

Surfactant disorders

Pulmonary alveolar proteinosis

Others

Alveolar vascular disorder related ILD

Pulmonary capillary haemangiomatosis

Diffuse alveolar haemorrhage and haemosiderosis

Alveolar capillary dysplasia

Others

ILD specific to infancy

Pulmonary glycogenosis

Neuroendocrine cell hyperplasia of infancy

ILD with no diagnosis