I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) V.b V - Pleural and/or pericardial involvement
V.b - Eosinophilic pleural effusion V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) VI.a VI - Pulmonary vasculopathies
VI.a - Pulmonary embolism - Venous thrombosis/thromboembolism IX.d IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.d - Respiratory failure from ventilatory depression (due to neuromuscular blockade/paralysis) X.a X - Systemic/Distant conditions, syndromes and reactions
X.a - DRES syndrome - DRESS-like reaction X.b X - Systemic/Distant conditions, syndromes and reactions
X.b - Antiphospholipid antibodies w/wo the APL syndrome XIX.d XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.d - BAL: Gross or microscopic bleeding/hemorrhage

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.d I - Interstitial/parenchymal lung disease
I.d - Organizing pneumonia pattern (an area or areas of consolidation on imaging) I.f I - Interstitial/parenchymal lung disease
I.f - Acute fibrinous organizing pneumonia (AFOP) I.m I - Interstitial/parenchymal lung disease
I.m - ILD with a granulomatous component I.o I - Interstitial/parenchymal lung disease
I.o - Focal/localized area of pneumonitis/fibrosis I.y I - Interstitial/parenchymal lung disease
I.y - Progression, acceleration or exacerbation of preexisting ILD/fibrosis I.ad I - Interstitial/parenchymal lung disease
I.ad - Radiation recall pneumonitis II.b II - Pulmonary edema - Acute lung injury - ARDS
II.b - ARDS - Acute lung injury III.h III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.h - Major/massive hemoptysis III.l III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.l - Alveolar hemorrhage, localized (e.g. lobar) IV.d IV - Airway involvement
IV.d - Cough (lone) IV.j IV - Airway involvement
IV.j - Bronchiolitis (a clinical-imaging pattern suggestive of) IV.k IV - Airway involvement
IV.k - Bronchiectasis IV.n IV - Airway involvement
IV.n - Obstructive airway dysfunction (see also IVc, XVx) IV.t IV - Airway involvement
IV.t - Sptutum production - Bronchorrhea - 'Bronchitis' IV.y IV - Airway involvement
IV.y - Eosinophilic airway disease (asthma, bronchitis, bronchiolitis) IV.ac IV - Airway involvement
IV.ac - Exacerbation or deterioration of preexisting asthma IV.ad IV - Airway involvement
IV.ad - Large airway inflammation - Tracheitis (w/wo tissue eosinophilia) V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) VI.a VI - Pulmonary vasculopathies
VI.a - Pulmonary embolism - Venous thrombosis/thromboembolism VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VII.a VII - Mediastinal involvement
VII.a - Lymphadenopathy (intrathoracic) VII.e VII - Mediastinal involvement
VII.e - Granulomatous mediastinal lymphadenopathy VIII.q VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.q - Tongue involvement (edema, glossitis, hematoma) VIII.t VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.t - Vocal cord paresis/paralysis IX.r IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.r - Myasthenia gravis - Myasthenic-like syndrome X.b X - Systemic/Distant conditions, syndromes and reactions
X.b - Antiphospholipid antibodies w/wo the APL syndrome X.c X - Systemic/Distant conditions, syndromes and reactions
X.c - Capillary leak syndrome (CLS) X.d X - Systemic/Distant conditions, syndromes and reactions
X.d - Lupus - Lupus syndrome (see also Vd) X.f X - Systemic/Distant conditions, syndromes and reactions
X.f - Anaphylaxis-Anaphylactoid reaction (can be fatal) X.g X - Systemic/Distant conditions, syndromes and reactions
X.g - Hypersensitivity reaction (may manifest with fever and/or skin, throat or airway involvement) X.j X - Systemic/Distant conditions, syndromes and reactions
X.j - Myopathy-Myositis-Polymyositis (see also under Xba) X.k X - Systemic/Distant conditions, syndromes and reactions
X.k - Sarcoid-like granulomatosis (endo-/extrathoracic) X.m X - Systemic/Distant conditions, syndromes and reactions
X.m - Vascultis (pulmonary, extrathoracic or systemic)-ANCA status unknown or negative) X.s X - Systemic/Distant conditions, syndromes and reactions
X.s - Vasculitis, pulmonary (w/wo AH), extrapulmonary, systemic: ANCA-positive X.ah X - Systemic/Distant conditions, syndromes and reactions
X.ah - Granulomatosis with polyangiitis (typically ANCA pos.) - GPA flare X.an X - Systemic/Distant conditions, syndromes and reactions
X.an - Cytokine release syndrome - Cytokine storm X.aw X - Systemic/Distant conditions, syndromes and reactions
X.aw - Connective tissue disease X.ax X - Systemic/Distant conditions, syndromes and reactions
X.ax - Scleroderma X.ay X - Systemic/Distant conditions, syndromes and reactions
X.ay - Polymyalgia rheumatica XI.d XI - Miscellaneous
XI.d - Metabolic acidosis (incl. lactic acidosis/-gap). May cause hyperpnea/dyspnea XI.n XI - Miscellaneous
XI.n - Neutropenia, agranulocytosis (w/wo infection/sepsis) XII.a XII - Cardiovascular involvement / toxicity
XII.a - Left or biventricular dysfunction/failure XII.c XII - Cardiovascular involvement / toxicity
XII.c - Pericardial effusion (w/wo tamponade) XII.d XII - Cardiovascular involvement / toxicity
XII.d - Myocarditis (can be fulminant) XII.s XII - Cardiovascular involvement / toxicity
XII.s - Heart block (bundle branch- or AV-) XV.a XV - Pathology
XV.a - Path: NSIP-cellular pattern (see also Ia, Ib) XV.b XV - Pathology
XV.b - Path: Eosinophilic pneumonia (subacute or acute) (see also Ic) XV.c XV - Pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.d XV - Pathology
XV.d - Path: Acute fibrinous organizing pneumonia (AFOP-pattern) (see also If) XV.e XV - Pathology
XV.e - Path: ILD with a granulomatous component (see also Im) XV.f XV - Pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.x XV - Pathology
XV.x - Path: Acute/subacute bronchiolitis (see also IVc, IVi) XV.bb XV - Pathology
XV.bb - Path: Airway inflammation XV.cw XV - Pathology
XV.cw - Path: Myocardial vasculitis XVI.b XVI - Imaging
XVI.b - Imaging: Ground-glass opacities (GGO) / shadowing 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.v XVI - Imaging
XVI.v - Imaging: Centrilobular micronodules (can be diffuse) XVI.z XVI - Imaging
XVI.z - Imaging: A large nodule or a mass XVI.ai XVI - Imaging
XVI.ai - Imaging: A 'tree-in-bud' pattern XVII.c XVII - Infections & related conditions
XVII.c - Aspergillosis, pulmonary (invasive, allergic [ABPA], or mycetoma) XVII.g XVII - Infections & related conditions
XVII.g - Tuberculosis (pulmonary, pulmonary, extrapulmonary or disseminated). Reactivation or de novo XVII.o XVII - Infections & related conditions
XVII.o - Nocardia pulmonary/systemic infection XIX.a XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes XIX.b XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.b - BAL: An excess proportion of neutrophils

I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) V.c V - Pleural and/or pericardial involvement
V.c - Pleural thickening V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension XII.b XII - Cardiovascular involvement / toxicity
XII.b - Valvular heart disease and/or dysfunction XII.k XII - Cardiovascular involvement / toxicity
XII.k - Constrictive pericarditis - Pericardial thickening

I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) V.c V - Pleural and/or pericardial involvement
V.c - Pleural thickening V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) X.d X - Systemic/Distant conditions, syndromes and reactions
X.d - Lupus - Lupus syndrome (see also Vd) XII.k XII - Cardiovascular involvement / toxicity
XII.k - Constrictive pericarditis - Pericardial thickening

I.a I - Interstitial/parenchymal lung disease
I.a - Pneumonitis (ILD), acute and/or severe (may cause ARDS) V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) V.i V - Pleural and/or pericardial involvement
V.i - Pleuritis (can cause chest pain) V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) X.g X - Systemic/Distant conditions, syndromes and reactions
X.g - Hypersensitivity reaction (may manifest with fever and/or skin, throat or airway involvement) X.t X - Systemic/Distant conditions, syndromes and reactions
X.t - Jarisch-Herxheimer reaction

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.k I - Interstitial/parenchymal lung disease
I.k - Lung nodule or nodules II.b II - Pulmonary edema - Acute lung injury - ARDS
II.b - ARDS - Acute lung injury III.a III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.a - Alveolar hemorrhage (AH), diffuse AH (DAH) III.b III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.b - Pneumorenal syndrome (w/wo ANCAs) III.d III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.d - Alveolar hemorrhage, diffuse (ANCA-positive/-related) IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma IV.r IV - Airway involvement
IV.r - Airway pigmentation (black, bluish, petechial) V.b V - Pleural and/or pericardial involvement
V.b - Eosinophilic pleural effusion V.d V - Pleural and/or pericardial involvement
V.d - Pleural/pericardial effusion, ANA positive (DI lupus) V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) V.u V - Pleural and/or pericardial involvement
V.u - Eosinophilic pleuritis VI.d VI - Pulmonary vasculopathies
VI.d - Pulmonary vasculitis or capillaritis X.d X - Systemic/Distant conditions, syndromes and reactions
X.d - Lupus - Lupus syndrome (see also Vd) X.e X - Systemic/Distant conditions, syndromes and reactions
X.e - Autoimmunity-Autoimmune conditions (+ANA, +anti-ds-DNA, +ANCAs, other auto-Abs) X.m X - Systemic/Distant conditions, syndromes and reactions
X.m - Vascultis (pulmonary, extrathoracic or systemic)-ANCA status unknown or negative) X.s X - Systemic/Distant conditions, syndromes and reactions
X.s - Vasculitis, pulmonary (w/wo AH), extrapulmonary, systemic: ANCA-positive X.x X - Systemic/Distant conditions, syndromes and reactions
X.x - Subclinical ANCA positivity X.ak X - Systemic/Distant conditions, syndromes and reactions
X.ak - Dual MPO-/PR3-ANCA systemic disease/vasculitis/pseudovasculitis XI.n XI - Miscellaneous
XI.n - Neutropenia, agranulocytosis (w/wo infection/sepsis) XV.a XV - Pathology
XV.a - Path: NSIP-cellular pattern (see also Ia, Ib) XV.c XV - Pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.h XV - Pathology
XV.h - Path: NSIP-fibrotic pattern XV.an XV - Pathology
XV.an - Path: Eosinophilic pleuritis

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.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.h I - Interstitial/parenchymal lung disease
I.h - Subclinical pulmonary infiltrates/ILD I.o I - Interstitial/parenchymal lung disease
I.o - Focal/localized area of pneumonitis/fibrosis I.v I - Interstitial/parenchymal lung disease
I.v - Abnormal lung function/pulmonary physiology (PFTs) without necessarily imaging or clinical evidence I.x I - Interstitial/parenchymal lung disease
I.x - Pleuroparenchymal fibroelastosis (PPFE) II.b II - Pulmonary edema - Acute lung injury - ARDS
II.b - ARDS - Acute lung injury III.c III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.c - Hemoptysis IV.h IV - Airway involvement
IV.h - Large airway necrosis IV.k IV - Airway involvement
IV.k - Bronchiectasis IV.m IV - Airway involvement
IV.m - Bronchial stenosis/stricture V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) V.b V - Pleural and/or pericardial involvement
V.b - Eosinophilic pleural effusion V.c V - Pleural and/or pericardial involvement
V.c - Pleural thickening V.f V - Pleural and/or pericardial involvement
V.f - Pneumothorax V.h V - Pleural and/or pericardial involvement
V.h - Chylothorax V.l V - Pleural and/or pericardial involvement
V.l - Malignant pleural mesothelioma V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) V.t V - Pleural and/or pericardial involvement
V.t - The apical cap VI.c VI - Pulmonary vasculopathies
VI.c - Pulmonary veno-occlusive disease VI.t VI - Pulmonary vasculopathies
VI.t - Pulmonary artery aneurysm(s) VI.ab VI - Pulmonary vasculopathies
VI.ab - Pulmonary artery stenosis VII.d VII - Mediastinal involvement
VII.d - Fibrosing mediastinitis VII.i VII - Mediastinal involvement
VII.i - Mediastinitis VII.j VII - Mediastinal involvement
VII.j - Compression of mediastinal structures/organs VII.l VII - Mediastinal involvement
VII.l - Calcification of mediastinal lymph nodes VIII.c VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.c - Upper airway obstruction other than angioedema or hematoma VIII.j VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.j - Laryngeal disorder-Laryngeal nerve palsy (dysphonia, hoarseness) VIII.r VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.r - Tracheal/large airway necrosis, chondronecrosis, perforation VIII.t VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.t - Vocal cord paresis/paralysis VIII.ab VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.ab - Airway (e.g. tracheoesophageal) fistula IX.a IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.a - Diaphragm/inspiratory muscle weakness/paralysis (w/wo ARF) IX.aj IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.aj - Paraspinal muscle myositis/myopathy/neuromyopathy +- the dropped head syndrome XI.g XI - Miscellaneous
XI.g - Aspiration, aspiration pneumonia (w/wo demonstrable pharyngeal dysmotility) XI.h XI - Miscellaneous
XI.h - Esophageal pathology (erosion, ulcer, tear, rupture, fistula) XI.i XI - Miscellaneous
XI.i - Esophageal toxicity XI.p XI - Miscellaneous
XI.p - Chest deformity: platythorax XI.v XI - Miscellaneous
XI.v - Rib fracture XI.ag XI - Miscellaneous
XI.ag - Vertebral compression fracture XI.ax XI - Miscellaneous
XI.ax - Esophageal stenosis/stricture XI.bb XI - Miscellaneous
XI.bb - Aorto-esophageal fistula XI.bs XI - Miscellaneous
XI.bs - Dropped-head syndrome XII.a XII - Cardiovascular involvement / toxicity
XII.a - Left or biventricular dysfunction/failure XII.b XII - Cardiovascular involvement / toxicity
XII.b - Valvular heart disease and/or dysfunction XII.f XII - Cardiovascular involvement / toxicity
XII.f - Cardiomyopathy (acute, subacute, chronic) XII.g XII - Cardiovascular involvement / toxicity
XII.g - Coronary artery disease (acute) - Myocardial ischemia/infarction XII.k XII - Cardiovascular involvement / toxicity
XII.k - Constrictive pericarditis - Pericardial thickening XII.o XII - Cardiovascular involvement / toxicity
XII.o - Coronary artery disease (subacute, chronic) XII.s XII - Cardiovascular involvement / toxicity
XII.s - Heart block (bundle branch- or AV-) XII.ad XII - Cardiovascular involvement / toxicity
XII.ad - Effusive-constrictive pericarditis XII.ak XII - Cardiovascular involvement / toxicity
XII.ak - Late left ventricular dysfunction/failure XII.an XII - Cardiovascular involvement / toxicity
XII.an - Pericardial calcification XII.bc XII - Cardiovascular involvement / toxicity
XII.bc - Coarctation of the aorta (acquired) XIII.a XIII - Neoplastic conditions
XIII.a - Lung cancer XIII.d XIII - Neoplastic conditions
XIII.d - Malignant mesothelioma (pleural, pericardial) XIII.e XIII - Neoplastic conditions
XIII.e - Breast cancer XIII.j XIII - Neoplastic conditions
XIII.j - Pulmonary synovial sarcoma XIII.l XIII - Neoplastic conditions
XIII.l - Chondrosarcoma XIII.m XIII - Neoplastic conditions
XIII.m - Tumor of the heart XV.f XV - Pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.l XV - Pathology
XV.l - Path: Pulmonary fibrosis (not otherwise specified or unclassifiable) XVI.ab XVI - Imaging
XVI.ab - Imaging: Cavitating/cavitary lung nodule, mass or nodules (see also Iq, XIs, XIIi, XVIaa and XVIIp) XVI.bi XVI - Imaging
XVI.bi - Imaging: Hyperlucent lung XVI.bj XVI - Imaging
XVI.bj - Imaging: Atelectasis (a combination of increased density and volume loss. Typically lobar)

IV.d IV - Airway involvement
IV.d - Cough (lone) V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) VIII.a VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.a - Angioedema (may cause UAO, asphyxia and death)

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.d I - Interstitial/parenchymal lung disease
I.d - Organizing pneumonia pattern (an area or areas of consolidation on imaging) I.f I - Interstitial/parenchymal lung disease
I.f - Acute fibrinous organizing pneumonia (AFOP) 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) II.b II - Pulmonary edema - Acute lung injury - ARDS
II.b - ARDS - Acute lung injury III.a III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.a - Alveolar hemorrhage (AH), diffuse AH (DAH) IV.d IV - Airway involvement
IV.d - Cough (lone) IV.l IV - Airway involvement
IV.l - Bronchial stump dehiscence V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) VI.a VI - Pulmonary vasculopathies
VI.a - Pulmonary embolism - Venous thrombosis/thromboembolism VI.d VI - Pulmonary vasculopathies
VI.d - Pulmonary vasculitis or capillaritis VI.f VI - Pulmonary vasculopathies
VI.f - Hemolytic and uremic syndrome (HUS). See also under Xaf VIII.a VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.a - Angioedema (may cause UAO, asphyxia and death) X.c X - Systemic/Distant conditions, syndromes and reactions
X.c - Capillary leak syndrome (CLS) XII.c XII - Cardiovascular involvement / toxicity
XII.c - Pericardial effusion (w/wo tamponade) XV.c XV - Pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.d XV - Pathology
XV.d - Path: Acute fibrinous organizing pneumonia (AFOP-pattern) (see also If) XV.e XV - Pathology
XV.e - Path: ILD with a granulomatous component (see also Im) XV.f XV - Pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.g XV - Pathology
XV.g - Path: Alveolar hemorrhage (see also IIIa) XV.k XV - Pathology
XV.k - Path: Desquamative interstitial pneumonia (DIP-pattern) XV.m XV - Pathology
XV.m - Path: Lymphoid hyperplasia (including nodular- or a lymphocytic interstitial pneumonia pattern) XV.n XV - Pathology
XV.n - Path: Pulmonary alveolar proteinosis pattern (PAP pattern) XV.ac XV - Pathology
XV.ac - Path: Pulmonary vasculitis other than capillaritis XV.bf XV - Pathology
XV.bf - Path: Pulmonary necrotizing granuloma or granulomas XVI.b XVI - Imaging
XVI.b - Imaging: Ground-glass opacities (GGO) / shadowing XVI.k XVI - Imaging
XVI.k - Imaging: An area or areas of consolidation XVII.b XVII - Infections & related conditions
XVII.b - Opportunistic pulmonary/systemic infections XVII.e XVII - Infections & related conditions
XVII.e - Pneumocystis jiroveci pneumonia XIX.a XIX - Cytological, biochemical features of/in 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 and/or severe (may cause 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 pattern (an area or areas of consolidation on imaging) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.m I - Interstitial/parenchymal lung disease
I.m - ILD with a granulomatous component II.d II - Pulmonary edema - Acute lung injury - ARDS
II.d - Pulmonary edema, cardiogenic IV.y IV - Airway involvement
IV.y - Eosinophilic airway disease (asthma, bronchitis, bronchiolitis) V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) V.b V - Pleural and/or pericardial involvement
V.b - Eosinophilic pleural effusion V.d V - Pleural and/or pericardial involvement
V.d - Pleural/pericardial effusion, ANA positive (DI lupus) V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) VI.d VI - Pulmonary vasculopathies
VI.d - Pulmonary vasculitis or capillaritis VII.a VII - Mediastinal involvement
VII.a - Lymphadenopathy (intrathoracic) X.a X - Systemic/Distant conditions, syndromes and reactions
X.a - DRES syndrome - DRESS-like reaction X.d X - Systemic/Distant conditions, syndromes and reactions
X.d - Lupus - Lupus syndrome (see also Vd) X.g X - Systemic/Distant conditions, syndromes and reactions
X.g - Hypersensitivity reaction (may manifest with fever and/or skin, throat or airway involvement) X.k X - Systemic/Distant conditions, syndromes and reactions
X.k - Sarcoid-like granulomatosis (endo-/extrathoracic) X.s X - Systemic/Distant conditions, syndromes and reactions
X.s - Vasculitis, pulmonary (w/wo AH), extrapulmonary, systemic: ANCA-positive X.u X - Systemic/Distant conditions, syndromes and reactions
X.u - Multiple organ dysfunction/failure (MODS/MOF) XI.b XI - Miscellaneous
XI.b - Chest pain (acute or subacute), lone or prominent XI.c XI - Miscellaneous
XI.c - Pleuritic chest pain XII.c XII - Cardiovascular involvement / toxicity
XII.c - Pericardial effusion (w/wo tamponade) XII.d XII - Cardiovascular involvement / toxicity
XII.d - Myocarditis (can be fulminant) XII.h XII - Cardiovascular involvement / toxicity
XII.h - Eosinophilic myocarditis XIV.a XIV - Hemoglobinopathies - Abnormal hemoglobin states (acquired)
XIV.a - Methemoglobinemia XV.c XV - Pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.e XV - Pathology
XV.e - Path: ILD with a granulomatous component (see also Im) XV.f XV - Pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.k XV - Pathology
XV.k - Path: Desquamative interstitial pneumonia (DIP-pattern) XV.ac XV - Pathology
XV.ac - Path: Pulmonary vasculitis other than capillaritis XVII.w XVII - Infections & related conditions
XVII.w - Hypogammaglobulinemia - Antibody deficiency XIX.a XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes XIX.c XIX - Cytological, biochemical features of/in 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 and/or severe (may cause ARDS) I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) II.d II - Pulmonary edema - Acute lung injury - ARDS
II.d - Pulmonary edema, cardiogenic III.a III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.a - Alveolar hemorrhage (AH), diffuse AH (DAH) V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) VI.a VI - Pulmonary vasculopathies
VI.a - Pulmonary embolism - Venous thrombosis/thromboembolism XII.a XII - Cardiovascular involvement / toxicity
XII.a - Left or biventricular dysfunction/failure XII.r XII - Cardiovascular involvement / toxicity
XII.r - Heart failure (biventricular, congestive) XII.ai XII - Cardiovascular involvement / toxicity
XII.ai - Cardiotoxicity XVI.bf XVI - Imaging
XVI.bf - Imaging: Tumoral cavitation

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.c I - Interstitial/parenchymal lung disease
I.c - Eosinophilic pneumonia (pulmonary infiltrates and eosinophilia) III.a III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.a - Alveolar hemorrhage (AH), diffuse AH (DAH) V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) V.b V - Pleural and/or pericardial involvement
V.b - Eosinophilic pleural effusion V.m V - Pleural and/or pericardial involvement
V.m - Pleuropericarditis - Pleuropericardial effusion (ANA unknown or negative) X.a X - Systemic/Distant conditions, syndromes and reactions
X.a - DRES syndrome - DRESS-like reaction XII.l XII - Cardiovascular involvement / toxicity
XII.l - Cardiac arrhythmias or dysrhythmias (AF, VT, VF, TdP)