I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute and/or severe (may cause ARDS) I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) I.ao I - Interstitial/parenchymal lung disease
I.ao - Pulmonary infiltrates, not specified otherwise V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion V.ae V - Pleural and/or pericardial involvement
V.ae - Pleural effusion, massive VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension