I.c I - Interstitial/parenchymal lung disease
I.c - Eosinophilic pneumonia (pulmonary infiltrates and eosinophilia) I.j I - Interstitial/parenchymal lung disease
I.j - Lipoid pneumonia, exogenous I.v I - Interstitial/parenchymal lung disease
I.v - Altered lung function/PFTs (can be subclinical) II.a II - Pulmonary edema - Acute lung injury - ARDS
II.a - Pulmonary edema, noncardiogenic (NCPE) II.b II - Pulmonary edema - Acute lung injury - ARDS
II.b - ARDS - Acute lung injury II.h II - Pulmonary edema - Acute lung injury - ARDS
II.h - Overload pulmonary edema (including posttransfusional (TACO)) II.i II - Pulmonary edema - Acute lung injury - ARDS
II.i - Flash (fulminate) pulmonary edema III.a III - Pulmonary/alveolar hemorrhage
III.a - Alveolar hemorrhage, diffuse (DAH) IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma IV.b IV - Airway involvement
IV.b - Bronchospasm and angioedema IV.f IV - Airway involvement
IV.f - Severe, catastrophic asthma attack (can be fatal) VI.e VI - Pulmonary vasculopathies
VI.e - Fat/oil embolism - The FES embolism syndrome VI.aa VI - Pulmonary vasculopathies
VI.aa - Lipiodol pulmonary embolism X.f X - Systemic/Distant conditions, syndromes and reactions
X.f - Anaphylaxis - Anaphylactoid reaction X.g X - Systemic/Distant conditions, syndromes and reactions
X.g - Hypersensitivity reactions (may involve skin, throat and/or airways) X.n X - Systemic/Distant conditions, syndromes and reactions
X.n - Tumor lysis syndrome (TLS) X.ap X - Systemic/Distant conditions, syndromes and reactions
X.ap - Delayed anaphylaxis XVIII.h XVIII - Distinctive patterns - 'Eye-catchers'
XVIII.h - Eye-catcher: Lipiodol embolism

I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) I.c I - Interstitial/parenchymal lung disease
I.c - Eosinophilic pneumonia (pulmonary infiltrates and eosinophilia) I.d I - Interstitial/parenchymal lung disease
I.d - Organizing pneumonia pattern (an area or areas of consolidation on imaging) I.e I - Interstitial/parenchymal lung disease
I.e - Acute eosinophilic pneumonia (AEP) I.y I - Interstitial/parenchymal lung disease
I.y - Progression, acceleration or exacerbation of preexisting ILD/fibrosis I.z I - Interstitial/parenchymal lung disease
I.z - An area or areas of consolidation II.b II - Pulmonary edema - Acute lung injury - ARDS
II.b - ARDS - Acute lung injury V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion VI.a VI - Pulmonary vasculopathies
VI.a - Venous thrombosis/thromboembolism - Pulmonary embolism VI.e VI - Pulmonary vasculopathies
VI.e - Fat/oil embolism - The FES embolism syndrome VI.v VI - Pulmonary vasculopathies
VI.v - Foreign body/substance embolism VI.aa VI - Pulmonary vasculopathies
VI.aa - Lipiodol pulmonary embolism XI.aa XI - Miscellaneous
XI.aa - CNS symptoms or involvement, stroke XV.c XV - Pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XVI.s XVI - Imaging
XVI.s - Imaging: An area or areas of involvement with high attenuation numbers or metallic density XVIII.h XVIII - Distinctive patterns - 'Eye-catchers'
XVIII.h - Eye-catcher: Lipiodol embolism