I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) 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 (or a consistent migratory OP pattern on imaging) I.f I - Interstitial/parenchymal lung disease
I.f - Acute fibrinous organizing pneumonia (AFOP) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.h I - Interstitial/parenchymal lung disease
I.h - Subclinical pulmonary opacities I.k I - Interstitial/parenchymal lung disease
I.k - Lung nodule or nodules I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.r I - Interstitial/parenchymal lung disease
I.r - Amiodarone pulmonary toxicity I.s I - Interstitial/parenchymal lung disease
I.s - A mass or masses I.u I - Interstitial/parenchymal lung disease
I.u - Relapsing or migrating pneumonitis/pneumonia (see also Id) I.w I - Interstitial/parenchymal lung disease
I.w - Rapidly progressive ILD or pulmonary fibrosis (Hamman-Rich syndrome) I.z I - Interstitial/parenchymal lung disease
I.z - Areas of consolidation I.aa I - Interstitial/parenchymal lung disease
I.aa - Delayed ILD, -pneumonitis, -fibrosis II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS II.l II - Pulmonary edema - ARDS - Acute respiratory failure
II.l - Postoperative ARDS III.a III - Pulmonary hemorrhage
III.a - Alveolar hemorrhage III.c III - Pulmonary hemorrhage
III.c - Hemoptysis IV.a IV - Airway involvement
IV.a - Bronchospasm - Asthma IV.d IV - Airway involvement
IV.d - Cough (lone) IV.r IV - Airway involvement
IV.r - Airway pigmentation (black, bluish, petechial) V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion V.c V - Pleural and/or pericardial involvement
V.c - Pleural thickening/fibrosis - Fibrothorax V.d V - Pleural and/or pericardial involvement
V.d - Pleural/pericardial effusion, ANA positive (DI lupus) VI.a VI - Pulmonary vasculopathy
VI.a - Pulmonary embolism - Venous thromboembolism VI.i VI - Pulmonary vasculopathy
VI.i - Acute pulmonary hypertension VIII.a VIII - Upper, central, large airway involvement
VIII.a - Angioedema (may cause UAO & asphyxia) IX.a IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.a - Diaphragm/inspiratory muscle weakness/paralysis (w/wo ARF) IX.d IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.d - Ventilatory depression-Hypoventilation (may cause ARF). See also XIe X.d X - Systemic reactions, syndromes and conditions
X.d - Lupus - Lupus syndrome (see also Vd) X.f X - Systemic reactions, syndromes and conditions
X.f - Anaphylaxis XI.c XI - Miscellaneous
XI.c - Pleuritic chest pain (see also under Vi) XI.f XI - Miscellaneous
XI.f - Pseudocyanotic skin discoloration (see also XIa, XIVa, XIVb) XII.a XII - Cardiovascular involvement / toxicity
XII.a - Left ventricular dysfunction/failure XII.c XII - Cardiovascular involvement / toxicity
XII.c - Pericarditis, pericardial effusion, tamponade XII.l XII - Cardiovascular involvement / toxicity
XII.l - Cardiac arrhythmias or dysrhythmias (AF, VT, VF, TdP) XII.n XII - Cardiovascular involvement / toxicity
XII.n - Hypotension, shock, cardiovascular collapse XII.p XII - Cardiovascular involvement / toxicity
XII.p - QT prolongation XII.af XII - Cardiovascular involvement / toxicity
XII.af - Coronary arterial spasm XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.b XV - Pulmonary pathology
XV.b - Path: Eosinophilic pneumonia (subacute or acute) (see also Ic) XV.c XV - Pulmonary pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.d XV - Pulmonary pathology
XV.d - Path: Acute fibrinous organizing pneumonia (AFOP-pattern) (see also If) XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.g XV - Pulmonary pathology
XV.g - Path: Alveolar hemorrhage (see also IIIa) XV.h XV - Pulmonary pathology
XV.h - Path: Pulmonary fibrosis (NSIP-f pattern) (see also Ig) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.j XV - Pulmonary pathology
XV.j - Path: Pulmonary fibrosis (UIP-pattern) XV.k XV - Pulmonary pathology
XV.k - Path: Desquamative interstitial pneumonia (DIP-pattern) XV.m XV - Pulmonary pathology
XV.m - Path: Lymphoid hyperplasia - LIP-pattern XV.o XV - Pulmonary pathology
XV.o - Path: Endogenous lipoid pneumonia (phospholipidosis) XV.r XV - Pulmonary pathology
XV.r - Path: Smudged geographic necrosis XV.ao XV - Pulmonary pathology
XV.ao - Path: Pleuritis, pleural fibrosis XV.bt XV - Pulmonary pathology
XV.bt - Path: Histiocytic proliferation XVI.b XVI - Imaging
XVI.b - Imaging: Ground-glass shadowing/opacities (GGO) XVI.i XVI - Imaging
XVI.i - Imaging: An area or areas of involvement with a recognizable anatomic distribution XVI.n XVI - Imaging
XVI.n - Imaging: Intralobular septal thickening - Crazy paving XVI.s XVI - Imaging
XVI.s - Imaging: An area or areas of involvement with high attenuation numbers or metallic density XVI.aa XVI - Imaging
XVI.aa - Imaging: Nodules, mass or masses with a central area of low attenuation (see also under XVIaa) XVI.ab XVI - Imaging
XVI.ab - Imaging: Cavitating lung nodules (see also Iq, XIs, XIIi, XVIaa and XVIIp) XVI.az XVI - Imaging
XVI.az - Imaging: Solitary pulmonary nodule XVI.bj XVI - Imaging
XVI.bj - Imaging: Atelectasis (a combination of increased density and volume loss. Typically lobar) XVIII.b XVIII - Distinctive patterns - 'Eye-catchers'
XVIII.b - Eye catcher: Electron-dense consolidation on unenhanced CT XVIII.k XVIII - Distinctive patterns - 'Eye-catchers'
XVIII.k - Eye-catcher: An electron-dense liver on unenhanced CT XVIII.p XVIII - Distinctive patterns - 'Eye-catchers'
XVIII.p - Eye catcher: An electron-dense ('white') thyroid XIX.a XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes XIX.b XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.b - BAL: An excess proportion of neutrophils XIX.e XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.e - BAL: Stainable iron in macrophages XIX.f XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.f - BAL: Foamy macrophages in BAL, pleural fluid, or FNA XIX.m XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.m - BAL: A normal cell differential

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) 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 (or a consistent migratory OP pattern on imaging) I.f I - Interstitial/parenchymal lung disease
I.f - Acute fibrinous organizing pneumonia (AFOP) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.k I - Interstitial/parenchymal lung disease
I.k - Lung nodule or nodules I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.v I - Interstitial/parenchymal lung disease
I.v - Subclinical changes in lung function/PFT I.w I - Interstitial/parenchymal lung disease
I.w - Rapidly progressive ILD or pulmonary fibrosis (Hamman-Rich syndrome) II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS V.f V - Pleural and/or pericardial involvement
V.f - Pneumothorax V.p V - Pleural and/or pericardial involvement
V.p - Pleuroparenchymal fibroelastosis (PPFE) VI.c VI - Pulmonary vasculopathy
VI.c - Pulmonary veno-occlusive disease VI.f VI - Pulmonary vasculopathy
VI.f - The hemolytic and uremic syndrome (HUS). See also under Xaf VII.e VII - Mediastinal involvement
VII.e - Granulomatous mediastinal lymphadenopathy VII.h VII - Mediastinal involvement
VII.h - Pneumomediastinum XI.b XI - Miscellaneous
XI.b - Chest pain (acute - subacute) XI.c XI - Miscellaneous
XI.c - Pleuritic chest pain (see also under Vi) XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.b XV - Pulmonary pathology
XV.b - Path: Eosinophilic pneumonia (subacute or acute) (see also Ic) XV.c XV - Pulmonary pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.d XV - Pulmonary pathology
XV.d - Path: Acute fibrinous organizing pneumonia (AFOP-pattern) (see also If) XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.h XV - Pulmonary pathology
XV.h - Path: Pulmonary fibrosis (NSIP-f pattern) (see also Ig) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.ax XV - Pulmonary pathology
XV.ax - Path: Focal organizing pneumonia XV.be XV - Pulmonary pathology
XV.be - Path: Interstitial pulmonary edema XV.bf XV - Pulmonary pathology
XV.bf - Path: Pulmonary necrotizing granuloma XVI.a XVI - Imaging
XVI.a - Imaging: Diffuse haze XVI.b XVI - Imaging
XVI.b - Imaging: Ground-glass shadowing/opacities (GGO) XVI.e XVI - Imaging
XVI.e - Imaging: Pulmonary opacities with a subpleural distribution XVI.k XVI - Imaging
XVI.k - Imaging: An area or areas of consolidation XVI.w XVI - Imaging
XVI.w - Imaging: Lung nodule or several nodules XVI.ab XVI - Imaging
XVI.ab - Imaging: Cavitating lung nodules (see also Iq, XIs, XIIi, XVIaa and XVIIp) XVI.af XVI - Imaging
XVI.af - Imaging: Lung cysts or bullae (see also XVI ah/bf) XVI.bl XVI - Imaging
XVI.bl - Imaging: Avid lung uptake on PET-scan XVIII.j XVIII - Distinctive patterns - 'Eye-catchers'
XVIII.j - Eye-catcher: Avid lung uptake on PET-scan XIX.b XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.b - BAL: An excess proportion of neutrophils

I.d I - Interstitial/parenchymal lung disease
I.d - Organizing pneumonia (or a consistent migratory OP pattern on imaging) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.n I - Interstitial/parenchymal lung disease
I.n - Pulmonary alveolar proteinosis (PAP) I.v I - Interstitial/parenchymal lung disease
I.v - Subclinical changes in lung function/PFT II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.c XV - Pulmonary pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.d XV - Pulmonary pathology
XV.d - Path: Acute fibrinous organizing pneumonia (AFOP-pattern) (see also If) XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.h XV - Pulmonary pathology
XV.h - Path: Pulmonary fibrosis (NSIP-f pattern) (see also Ig) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.bc XV - Pulmonary pathology
XV.bc - Path: Opportunistic pulmonary infection (see also XVII/XVIIb-d-e) XVII.f XVII - Infections & related conditions
XVII.f - Tuberculosis, miliary

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.x I - Interstitial/parenchymal lung disease
I.x - Pleuroparenchymal fibroelastosis (PPFE) I.ad I - Interstitial/parenchymal lung disease
I.ad - Radiation recall pneumonitis II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion V.f V - Pleural and/or pericardial involvement
V.f - Pneumothorax V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericardial effusion (ANA unknown or negative) XII.c XII - Cardiovascular involvement / toxicity
XII.c - Pericarditis, pericardial effusion, tamponade XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.h XV - Pulmonary pathology
XV.h - Path: Pulmonary fibrosis (NSIP-f pattern) (see also Ig) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.ap XV - Pulmonary pathology
XV.ap - Path: Pleuroparenchymal fibrosis/fibroelastosis (PPFE) XVI.a XVI - Imaging
XVI.a - Imaging: Diffuse haze

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) 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 (or a consistent migratory OP pattern on imaging) I.f I - Interstitial/parenchymal lung disease
I.f - Acute fibrinous organizing pneumonia (AFOP) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.h I - Interstitial/parenchymal lung disease
I.h - Subclinical pulmonary opacities I.k I - Interstitial/parenchymal lung disease
I.k - Lung nodule or nodules I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.m I - Interstitial/parenchymal lung disease
I.m - ILD with a granulomatous component I.n I - Interstitial/parenchymal lung disease
I.n - Pulmonary alveolar proteinosis (PAP) I.v I - Interstitial/parenchymal lung disease
I.v - Subclinical changes in lung function/PFT I.w I - Interstitial/parenchymal lung disease
I.w - Rapidly progressive ILD or pulmonary fibrosis (Hamman-Rich syndrome) I.x I - Interstitial/parenchymal lung disease
I.x - Pleuroparenchymal fibroelastosis (PPFE) I.y I - Interstitial/parenchymal lung disease
I.y - Progression, acceleration or exacerbation of preexisting ILD/fibrosis I.aa I - Interstitial/parenchymal lung disease
I.aa - Delayed ILD, -pneumonitis, -fibrosis I.ad I - Interstitial/parenchymal lung disease
I.ad - Radiation recall pneumonitis II.a II - Pulmonary edema - ARDS - Acute respiratory failure
II.a - Pulmonary edema, noncardiogenic (NCPE) II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS II.c II - Pulmonary edema - ARDS - Acute respiratory failure
II.c - ARDS and the hemolytic-uremic syndrome (HUS) II.d II - Pulmonary edema - ARDS - Acute respiratory failure
II.d - Acute/subacute pulmonary edema, cardiogenic III.a III - Pulmonary hemorrhage
III.a - Alveolar hemorrhage IV.a IV - Airway involvement
IV.a - Bronchospasm - Asthma V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion V.f V - Pleural and/or pericardial involvement
V.f - Pneumothorax VI.b VI - Pulmonary vasculopathy
VI.b - Pulmonary arterial hypertension VI.c VI - Pulmonary vasculopathy
VI.c - Pulmonary veno-occlusive disease VI.f VI - Pulmonary vasculopathy
VI.f - The hemolytic and uremic syndrome (HUS). See also under Xaf VII.a VII - Mediastinal involvement
VII.a - Lymphadenopathy (intrathoracic) VII.h VII - Mediastinal involvement
VII.h - Pneumomediastinum VIII.a VIII - Upper, central, large airway involvement
VIII.a - Angioedema (may cause UAO & asphyxia) IX.f IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.f - Hiccup IX.j IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.j - Phrenic nerve injury - Hemidiaphragmatic paralysis IX.o IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.o - Pneumorachis X.c X - Systemic reactions, syndromes and conditions
X.c - Capillary/vascular leak syndrome (CLS) (see also under Xr) X.d X - Systemic reactions, syndromes and conditions
X.d - Lupus - Lupus syndrome (see also Vd) X.f X - Systemic reactions, syndromes and conditions
X.f - Anaphylaxis X.g X - Systemic reactions, syndromes and conditions
X.g - Hypersensitivity reaction (may involve skin, throat and/or airways) X.k X - Systemic reactions, syndromes and conditions
X.k - Granulomatous sarcoid-like thoracic and/or extrathoracic reaction X.n X - Systemic reactions, syndromes and conditions
X.n - Tumor lysis syndrome (TLS) XI.b XI - Miscellaneous
XI.b - Chest pain (acute - subacute) XI.n XI - Miscellaneous
XI.n - Neutropenia, agranulocytosis (w/wo infection/sepsis) XI.w XI - Miscellaneous
XI.w - Cavitation/necrosis of lung tumor or metastases XII.b XII - Cardiovascular involvement / toxicity
XII.b - Valvular heart disease and/or dysfunction XII.c XII - Cardiovascular involvement / toxicity
XII.c - Pericarditis, pericardial effusion, tamponade XII.f XII - Cardiovascular involvement / toxicity
XII.f - Cardiomyopathy (acute, subacute, chronic) XII.g XII - Cardiovascular involvement / toxicity
XII.g - Myocardial ischemia, coronary artery disease, myocardial infarction XII.l XII - Cardiovascular involvement / toxicity
XII.l - Cardiac arrhythmias or dysrhythmias (AF, VT, VF, TdP) XII.s XII - Cardiovascular involvement / toxicity
XII.s - Heart block (bundle branch- or AV-) XII.ai XII - Cardiovascular involvement / toxicity
XII.ai - Cardiotoxicity XIII.a XIII - Neoplastic conditions
XIII.a - Lung cancer XIII.b XIII - Neoplastic conditions
XIII.b - Lymphoproliferative disease (pulmonary, endothoracic) XIII.d XIII - Neoplastic conditions
XIII.d - Malignant mesothelioma (pleural, pericardial) XV.d XV - Pulmonary pathology
XV.d - Path: Acute fibrinous organizing pneumonia (AFOP-pattern) (see also If) XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.l XV - Pulmonary pathology
XV.l - Path: Pulmonary fibrosis, unclassifiable XV.ak XV - Pulmonary pathology
XV.ak - Path: Pulmonary veno-occlusive disease (PVOD) XV.am XV - Pulmonary pathology
XV.am - Path: Thrombosis in pulmonary arterioles/venules XV.ba XV - Pulmonary pathology
XV.ba - Path: Granulomatous lymphadenopathy XVI.ab XVI - Imaging
XVI.ab - Imaging: Cavitating lung nodules (see also Iq, XIs, XIIi, XVIaa and XVIIp) XVI.af XVI - Imaging
XVI.af - Imaging: Lung cysts or bullae (see also XVI ah/bf) XVI.bf XVI - Imaging
XVI.bf - Imaging: Tumoral cavitation XVI.bl XVI - Imaging
XVI.bl - Imaging: Avid lung uptake on PET-scan XVII.b XVII - Infections & related conditions
XVII.b - Opportunistic pulmonary/systemic infection XVII.c XVII - Infections & related conditions
XVII.c - Aspergillosis, pulmonary XVII.e XVII - Infections & related conditions
XVII.e - Pneumocystis jiroveci pneumonia XVII.g XVII - Infections & related conditions
XVII.g - Tuberculosis (pulmonary, extrapulmonary, reactivation or de novo) XVII.j XVII - Infections & related conditions
XVII.j - Mucormycosis (pulmonary, tracheobronchial or systemic) XVII.r XVII - Infections & related conditions
XVII.r - Fungal infection (pulmonary/extrapulmonary) XVII.af XVII - Infections & related conditions
XVII.af - Reactivation of a prior pulmonary infection (TB, melioidosis)

I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) I.d I - Interstitial/parenchymal lung disease
I.d - Organizing pneumonia (or a consistent migratory OP pattern on imaging) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS X.a X - Systemic reactions, syndromes and conditions
X.a - DRESS (drug rash eosinophilia and hypersensitivity syndrome) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.l XV - Pulmonary pathology
XV.l - Path: Pulmonary fibrosis, unclassifiable XIX.a XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes

XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells)

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) I.d I - Interstitial/parenchymal lung disease
I.d - Organizing pneumonia (or a consistent migratory OP pattern on imaging) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.x I - Interstitial/parenchymal lung disease
I.x - Pleuroparenchymal fibroelastosis (PPFE) I.aa I - Interstitial/parenchymal lung disease
I.aa - Delayed ILD, -pneumonitis, -fibrosis II.a II - Pulmonary edema - ARDS - Acute respiratory failure
II.a - Pulmonary edema, noncardiogenic (NCPE) II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS III.a III - Pulmonary hemorrhage
III.a - Alveolar hemorrhage IV.a IV - Airway involvement
IV.a - Bronchospasm - Asthma V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion V.c V - Pleural and/or pericardial involvement
V.c - Pleural thickening/fibrosis - Fibrothorax V.f V - Pleural and/or pericardial involvement
V.f - Pneumothorax VI.c VI - Pulmonary vasculopathy
VI.c - Pulmonary veno-occlusive disease X.f X - Systemic reactions, syndromes and conditions
X.f - Anaphylaxis XI.p XI - Miscellaneous
XI.p - Chest deformity: platythorax XII.a XII - Cardiovascular involvement / toxicity
XII.a - Left ventricular dysfunction/failure XII.c XII - Cardiovascular involvement / toxicity
XII.c - Pericarditis, pericardial effusion, tamponade XII.f XII - Cardiovascular involvement / toxicity
XII.f - Cardiomyopathy (acute, subacute, chronic) XII.g XII - Cardiovascular involvement / toxicity
XII.g - Myocardial ischemia, coronary artery disease, myocardial infarction XII.s XII - Cardiovascular involvement / toxicity
XII.s - Heart block (bundle branch- or AV-) XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.h XV - Pulmonary pathology
XV.h - Path: Pulmonary fibrosis (NSIP-f pattern) (see also Ig) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.ak XV - Pulmonary pathology
XV.ak - Path: Pulmonary veno-occlusive disease (PVOD) XV.ap XV - Pulmonary pathology
XV.ap - Path: Pleuroparenchymal fibrosis/fibroelastosis (PPFE) XVI.bl XVI - Imaging
XVI.bl - Imaging: Avid lung uptake on PET-scan XVII.b XVII - Infections & related conditions
XVII.b - Opportunistic pulmonary/systemic infection XVII.e XVII - Infections & related conditions
XVII.e - Pneumocystis jiroveci pneumonia XVII.q XVII - Infections & related conditions
XVII.q - Viral pneumonia XIX.a XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes

I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS III.a III - Pulmonary hemorrhage
III.a - Alveolar hemorrhage IV.a IV - Airway involvement
IV.a - Bronchospasm - Asthma VIII.a VIII - Upper, central, large airway involvement
VIII.a - Angioedema (may cause UAO & asphyxia) X.f X - Systemic reactions, syndromes and conditions
X.f - Anaphylaxis X.g X - Systemic reactions, syndromes and conditions
X.g - Hypersensitivity reaction (may involve skin, throat and/or airways) XI.b XI - Miscellaneous
XI.b - Chest pain (acute - subacute) XII.g XII - Cardiovascular involvement / toxicity
XII.g - Myocardial ischemia, coronary artery disease, myocardial infarction XII.n XII - Cardiovascular involvement / toxicity
XII.n - Hypotension, shock, cardiovascular collapse XV.c XV - Pulmonary pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells)

I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS III.a III - Pulmonary hemorrhage
III.a - Alveolar hemorrhage XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells)

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) 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 (or a consistent migratory OP pattern on imaging) I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.n I - Interstitial/parenchymal lung disease
I.n - Pulmonary alveolar proteinosis (PAP) I.q I - Interstitial/parenchymal lung disease
I.q - Nodules in lung parenchyma (a.k.a. nodulosis) 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 - Areas of consolidation IV.d IV - Airway involvement
IV.d - Cough (lone) V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericardial effusion (ANA unknown or negative) VI.b VI - Pulmonary vasculopathy
VI.b - Pulmonary arterial hypertension X.a X - Systemic reactions, syndromes and conditions
X.a - DRESS (drug rash eosinophilia and hypersensitivity syndrome) X.d X - Systemic reactions, syndromes and conditions
X.d - Lupus - Lupus syndrome (see also Vd) XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.c XV - Pulmonary pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XVII.g XVII - Infections & related conditions
XVII.g - Tuberculosis (pulmonary, extrapulmonary, reactivation or de novo) XIX.a XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.v I - Interstitial/parenchymal lung disease
I.v - Subclinical changes in lung function/PFT II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS IV.a IV - Airway involvement
IV.a - Bronchospasm - Asthma X.f X - Systemic reactions, syndromes and conditions
X.f - Anaphylaxis XV.c XV - Pulmonary pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.h XV - Pulmonary pathology
XV.h - Path: Pulmonary fibrosis (NSIP-f pattern) (see also Ig) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.j XV - Pulmonary pathology
XV.j - Path: Pulmonary fibrosis (UIP-pattern)

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) I.d I - Interstitial/parenchymal lung disease
I.d - Organizing pneumonia (or a consistent migratory OP pattern on imaging) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.h I - Interstitial/parenchymal lung disease
I.h - Subclinical pulmonary opacities I.k I - Interstitial/parenchymal lung disease
I.k - Lung nodule or nodules I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.m I - Interstitial/parenchymal lung disease
I.m - ILD with a granulomatous component I.q I - Interstitial/parenchymal lung disease
I.q - Nodules in lung parenchyma (a.k.a. nodulosis) I.v I - Interstitial/parenchymal lung disease
I.v - Subclinical changes in lung function/PFT I.w I - Interstitial/parenchymal lung disease
I.w - Rapidly progressive ILD or pulmonary fibrosis (Hamman-Rich syndrome) I.aa I - Interstitial/parenchymal lung disease
I.aa - Delayed ILD, -pneumonitis, -fibrosis II.a II - Pulmonary edema - ARDS - Acute respiratory failure
II.a - Pulmonary edema, noncardiogenic (NCPE) II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS III.a III - Pulmonary hemorrhage
III.a - Alveolar hemorrhage IV.a IV - Airway involvement
IV.a - Bronchospasm - Asthma IV.d IV - Airway involvement
IV.d - Cough (lone) V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion V.b V - Pleural and/or pericardial involvement
V.b - Eosinophilic pleural effusion V.i V - Pleural and/or pericardial involvement
V.i - Pleuritis (may cause acute chest pain (see also under XIc) V.n V - Pleural and/or pericardial involvement
V.n - Hemopericardium - Bloody pericardial effusion V.s V - Pleural and/or pericardial involvement
V.s - Serositis - Polyserositis VI.a VI - Pulmonary vasculopathy
VI.a - Pulmonary embolism - Venous thromboembolism VII.a VII - Mediastinal involvement
VII.a - Lymphadenopathy (intrathoracic) VIII.a VIII - Upper, central, large airway involvement
VIII.a - Angioedema (may cause UAO & asphyxia) X.f X - Systemic reactions, syndromes and conditions
X.f - Anaphylaxis X.k X - Systemic reactions, syndromes and conditions
X.k - Granulomatous sarcoid-like thoracic and/or extrathoracic reaction X.u X - Systemic reactions, syndromes and conditions
X.u - Multiple organ dysfunction/failure (MODS/MOF) XI.b XI - Miscellaneous
XI.b - Chest pain (acute - subacute) XI.c XI - Miscellaneous
XI.c - Pleuritic chest pain (see also under Vi) XII.c XII - Cardiovascular involvement / toxicity
XII.c - Pericarditis, pericardial effusion, tamponade XIII.b XIII - Neoplastic conditions
XIII.b - Lymphoproliferative disease (pulmonary, endothoracic) XIII.g XIII - Neoplastic conditions
XIII.g - Lymphomatoid granulomatosis (pulmonary, endothoracic) XIII.k XIII - Neoplastic conditions
XIII.k - Lymphoproliferative disease (extrathoracic) XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.c XV - Pulmonary pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.e XV - Pulmonary pathology
XV.e - Path: ILD with a granulomatous component (see also Im) XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.h XV - Pulmonary pathology
XV.h - Path: Pulmonary fibrosis (NSIP-f pattern) (see also Ig) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.w XV - Pulmonary pathology
XV.w - Path: Pulmonary edema (see also II/IIa) XV.bq XV - Pulmonary pathology
XV.bq - Path: Lymphoproliferative disease, endothoracic XVI.b XVI - Imaging
XVI.b - Imaging: Ground-glass shadowing/opacities (GGO) XVI.k XVI - Imaging
XVI.k - Imaging: An area or areas of consolidation XVI.bc XVI - Imaging
XVI.bc - Imaging: Intrathoracic lymph node enlargement XVII.b XVII - Infections & related conditions
XVII.b - Opportunistic pulmonary/systemic infection XVII.d XVII - Infections & related conditions
XVII.d - Pneumocystis jiroveci pulmonary colonization XVII.e XVII - Infections & related conditions
XVII.e - Pneumocystis jiroveci pneumonia XVII.h XVII - Infections & related conditions
XVII.h - Nontuberculous mycobacterial infection XVII.q XVII - Infections & related conditions
XVII.q - Viral pneumonia XIX.a XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes XIX.b XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.b - BAL: An excess proportion of neutrophils XIX.c XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.c - BAL: An excess proportion of eosinophils

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.h I - Interstitial/parenchymal lung disease
I.h - Subclinical pulmonary opacities I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.v I - Interstitial/parenchymal lung disease
I.v - Subclinical changes in lung function/PFT I.w I - Interstitial/parenchymal lung disease
I.w - Rapidly progressive ILD or pulmonary fibrosis (Hamman-Rich syndrome) II.a II - Pulmonary edema - ARDS - Acute respiratory failure
II.a - Pulmonary edema, noncardiogenic (NCPE) II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS II.c II - Pulmonary edema - ARDS - Acute respiratory failure
II.c - ARDS and the hemolytic-uremic syndrome (HUS) III.a III - Pulmonary hemorrhage
III.a - Alveolar hemorrhage VI.b VI - Pulmonary vasculopathy
VI.b - Pulmonary arterial hypertension VI.c VI - Pulmonary vasculopathy
VI.c - Pulmonary veno-occlusive disease VI.f VI - Pulmonary vasculopathy
VI.f - The hemolytic and uremic syndrome (HUS). See also under Xaf VI.p VI - Pulmonary vasculopathy
VI.p - Angiomatoid pulmonary vasculopathy VIII.c VIII - Upper, central, large airway involvement
VIII.c - Upper airway obstruction other than angioedema or hematoma X.k X - Systemic reactions, syndromes and conditions
X.k - Granulomatous sarcoid-like thoracic and/or extrathoracic reaction XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.ak XV - Pulmonary pathology
XV.ak - Path: Pulmonary veno-occlusive disease (PVOD)

I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) IV.a IV - Airway involvement
IV.a - Bronchospasm - Asthma X.a X - Systemic reactions, syndromes and conditions
X.a - DRESS (drug rash eosinophilia and hypersensitivity syndrome) XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells)

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute, severe (see also under ARDS) 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 (or a consistent migratory OP pattern on imaging) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.h I - Interstitial/parenchymal lung disease
I.h - Subclinical pulmonary opacities I.k I - Interstitial/parenchymal lung disease
I.k - Lung nodule or nodules I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.o I - Interstitial/parenchymal lung disease
I.o - Focal/localized area of pneumonitis/fibrosis I.v I - Interstitial/parenchymal lung disease
I.v - Subclinical changes in lung function/PFT I.x I - Interstitial/parenchymal lung disease
I.x - Pleuroparenchymal fibroelastosis (PPFE) I.y I - Interstitial/parenchymal lung disease
I.y - Progression, acceleration or exacerbation of preexisting ILD/fibrosis II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS III.h III - Pulmonary hemorrhage
III.h - Major/massive hemoptysis IV.h IV - Airway involvement
IV.h - Airway necrosis IV.m IV - Airway involvement
IV.m - Bronchial stenosis/stricture V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion V.c V - Pleural and/or pericardial involvement
V.c - Pleural thickening/fibrosis - Fibrothorax V.f V - Pleural and/or pericardial involvement
V.f - Pneumothorax V.h V - Pleural and/or pericardial involvement
V.h - Chylothorax V.k V - Pleural and/or pericardial involvement
V.k - Pleural calcifications VI.c VI - Pulmonary vasculopathy
VI.c - Pulmonary veno-occlusive disease VI.x VI - Pulmonary vasculopathy
VI.x - Pulmonary lymphangiectasis VII.d VII - Mediastinal involvement
VII.d - Fibrosing mediastinitis VIII.c VIII - Upper, central, large airway involvement
VIII.c - Upper airway obstruction other than angioedema or hematoma VIII.r VIII - Upper, central, large airway involvement
VIII.r - Tracheal necrosis, chondronecrosis, perforation VIII.t VIII - Upper, central, large airway involvement
VIII.t - Vocal cord paralysis VIII.ab VIII - Upper, central, large airway involvement
VIII.ab - Tracheal/bronchial fistula IX.j IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.j - Phrenic nerve injury - Hemidiaphragmatic paralysis XI.b XI - Miscellaneous
XI.b - Chest pain (acute - subacute) XI.h XI - Miscellaneous
XI.h - Esophageal tear/rupture XI.i XI - Miscellaneous
XI.i - Esophageal toxicity XI.j XI - Miscellaneous
XI.j - Esophageal dysmotility XI.w XI - Miscellaneous
XI.w - Cavitation/necrosis of lung tumor or metastases XI.ag XI - Miscellaneous
XI.ag - Vertebral compression fracture XII.b XII - Cardiovascular involvement / toxicity
XII.b - Valvular heart disease and/or dysfunction XII.k XII - Cardiovascular involvement / toxicity
XII.k - Pericardial thickening - Constrictive pericarditis XII.o XII - Cardiovascular involvement / toxicity
XII.o - Coronary artery disease, chronic XII.s XII - Cardiovascular involvement / toxicity
XII.s - Heart block (bundle branch- or AV-) XIII.e XIII - Neoplastic conditions
XIII.e - Breast cancer XV.c XV - Pulmonary pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.f XV - Pulmonary pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.h XV - Pulmonary pathology
XV.h - Path: Pulmonary fibrosis (NSIP-f pattern) (see also Ig) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) XV.bm XV - Pulmonary pathology
XV.bm - Path: Diffuse lymphangiectasis XVII.e XVII - Infections & related conditions
XVII.e - Pneumocystis jiroveci pneumonia XVII.af XVII - Infections & related conditions
XVII.af - Reactivation of a prior pulmonary infection (TB, melioidosis) XIX.a XIX - Cytology, biochemistry of BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes

I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) I.o I - Interstitial/parenchymal lung disease
I.o - Focal/localized area of pneumonitis/fibrosis I.w I - Interstitial/parenchymal lung disease
I.w - Rapidly progressive ILD or pulmonary fibrosis (Hamman-Rich syndrome) I.ab I - Interstitial/parenchymal lung disease
I.ab - Radiation-induced lung injury (RILI) I.ac I - Interstitial/parenchymal lung disease
I.ac - Acute radiation pneumonitis II.b II - Pulmonary edema - ARDS - Acute respiratory failure
II.b - ARDS V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells)

I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis XV.h XV - Pulmonary pathology
XV.h - Path: Pulmonary fibrosis (NSIP-f pattern) (see also Ig) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells)

I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) VIII.e VIII - Upper, central, large airway involvement
VIII.e - Laryngospasm (a.k.a. laryngismus) XV.a XV - Pulmonary pathology
XV.a - Path: NSIP-c (cellular ILD) pattern (see also Ia, Ib) XV.i XV - Pulmonary pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells)