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.n I - Interstitial/parenchymal lung disease
I.n - Pulmonary alveolar proteinosis (PAP) I.y I - Interstitial/parenchymal lung disease
I.y - Progression, acceleration or exacerbation of preexisting ILD/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.d V - Pleural and/or pericardial involvement
V.d - Pleural/pericardial effusion, ANA positive (DI lupus) V.h V - Pleural and/or pericardial involvement
V.h - Chylothorax 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) VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension X.d X - Systemic/Distant conditions, syndromes and reactions
X.d - Lupus - Lupus syndrome (see also Vd) X.r X - Systemic/Distant conditions, syndromes and reactions
X.r - Fluid retention XI.b XI - Miscellaneous
XI.b - Chest pain (acute or subacute), lone or prominent 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.n XV - Pathology
XV.n - Path: Pulmonary alveolar proteinosis pattern (PAP pattern) XV.ao XV - Pathology
XV.ao - Path: Pleuritis, pleural fibrosis XV.ch XV - Pathology
XV.ch - Path: Organizing fibrinous pleuritis (OFP) XVI.m XVI - Imaging
XVI.m - Imaging: Interlobular septal thickening XVI.an XVI - Imaging
XVI.an - Imaging: Pleural effusion XIX.a XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes

VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension XII.b XII - Cardiovascular involvement / toxicity
XII.b - Valvular heart disease and/or dysfunction

VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension

II.a II - Pulmonary edema - Acute lung injury - ARDS
II.a - Pulmonary edema, noncardiogenic (NCPE) IV.aa IV - Airway involvement
IV.aa - Occupational asthma VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VIII.a VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.a - Angioedema (may cause UAO, asphyxia and death) X.f X - Systemic/Distant conditions, syndromes and reactions
X.f - Anaphylaxis-Anaphylactoid reaction (can be fatal) XI.a XI - Miscellaneous
XI.a - Cyanosis, a low SpO2 and normal measured PaO2 XIV.a XIV - Hemoglobinopathies - Abnormal hemoglobin states (acquired)
XIV.a - Methemoglobinemia

VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VI.e VI - Pulmonary vasculopathies
VI.e - Fat/oil embolism - The FES embolism syndrome VI.g VI - Pulmonary vasculopathies
VI.g - Foreign body pulmonary vasculopathy (Excipient lung disease) XV.ag XV - Pathology
XV.ag - Path: Foreign body embolism, microangiopathy, vasculopathy

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.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.m I - Interstitial/parenchymal lung disease
I.m - ILD with a granulomatous component I.t I - Interstitial/parenchymal lung disease
I.t - Pneumoconiosis (silicosis, talcosis...) II.a II - Pulmonary edema - Acute lung injury - ARDS
II.a - Pulmonary edema, noncardiogenic (NCPE) IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma IV.f IV - Airway involvement
IV.f - Severe or catastrophic bronchospasm or asthma attack (can be fatal) IV.i IV - Airway involvement
IV.i - Foreign body aspiration bronchiolitis VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VI.e VI - Pulmonary vasculopathies
VI.e - Fat/oil embolism - The FES embolism syndrome VI.g VI - Pulmonary vasculopathies
VI.g - Foreign body pulmonary vasculopathy (Excipient lung disease) 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.u X - Systemic/Distant conditions, syndromes and reactions
X.u - Multiple organ dysfunction/failure (MODS/MOF) X.bh X - Systemic/Distant conditions, syndromes and reactions
X.bh - Protracted, prolonged anaphylaxis XI.d XI - Miscellaneous
XI.d - Metabolic acidosis (incl. lactic acidosis/-gap). May cause hyperpnea/dyspnea XII.n XII - Cardiovascular involvement / toxicity
XII.n - Cardiovascular collapse - Cardiogenic shock - Hypotension XV.q XV - Pathology
XV.q - Path: Foreign body deposits/granulomatous reaction XV.ae XV - Pathology
XV.ae - Path: Lipid/fat embolism (see also VIe) XVI.q XVI - Imaging
XVI.q - Imaging: A pattern similar/consistent to/with IPF XVI.v XVI - Imaging
XVI.v - Imaging: Centrilobular micronodules (can be diffuse)

VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension

I.c I - Interstitial/parenchymal lung disease
I.c - Eosinophilic pneumonia (pulmonary infiltrates and eosinophilia) V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension XII.b XII - Cardiovascular involvement / toxicity
XII.b - Valvular heart disease and/or dysfunction XV.al XV - Pathology
XV.al - Path: Pulmonary hypertension incl. angiomatoid vasculopathy

VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension

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.e I - Interstitial/parenchymal lung disease
I.e - Acute eosinophilic pneumonia (AEP) I.k I - Interstitial/parenchymal lung disease
I.k - Lung nodule or nodules I.m I - Interstitial/parenchymal lung disease
I.m - ILD with a granulomatous component V.b V - Pleural and/or pericardial involvement
V.b - Eosinophilic pleural effusion VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VI.d VI - Pulmonary vasculopathies
VI.d - Pulmonary vasculitis or capillaritis XV.a XV - Pathology
XV.a - Path: NSIP-cellular pattern (see also Ia, Ib) XV.e XV - Pathology
XV.e - Path: ILD with a granulomatous component (see also Im) XV.ac XV - Pathology
XV.ac - Path: Pulmonary vasculitis other than capillaritis

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.e I - Interstitial/parenchymal lung disease
I.e - Acute eosinophilic pneumonia (AEP) 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.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.ad I - Interstitial/parenchymal lung disease
I.ad - Radiation recall pneumonitis 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.c II - Pulmonary edema - Acute lung injury - ARDS
II.c - ARDS and the hemolytic-uremic syndrome (HUS) III.a III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.a - Alveolar hemorrhage (AH), diffuse AH (DAH) III.h III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.h - Major/massive hemoptysis IV.b IV - Airway involvement
IV.b - Bronchospasm and angioedema 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) VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VI.c VI - Pulmonary vasculopathies
VI.c - Pulmonary veno-occlusive disease VI.f VI - Pulmonary vasculopathies
VI.f - Hemolytic and uremic syndrome (HUS). See also under Xaf X.c X - Systemic/Distant conditions, syndromes and reactions
X.c - Capillary leak syndrome (CLS) X.m X - Systemic/Distant conditions, syndromes and reactions
X.m - Vascultis (pulmonary, extrathoracic or systemic)-ANCA status unknown or negative) X.n X - Systemic/Distant conditions, syndromes and reactions
X.n - Tumor lysis syndrome (TLS) X.af X - Systemic/Distant conditions, syndromes and reactions
X.af - Thrombotic microangiopathy XI.b XI - Miscellaneous
XI.b - Chest pain (acute or subacute), lone or prominent XII.c XII - Cardiovascular involvement / toxicity
XII.c - Pericardial effusion (w/wo tamponade) XII.f XII - Cardiovascular involvement / toxicity
XII.f - Cardiomyopathy (acute, subacute, chronic) XV.a XV - Pathology
XV.a - Path: NSIP-cellular pattern (see also Ia, Ib) 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) XVI.b XVI - Imaging
XVI.b - Imaging: Ground-glass opacities (GGO) / shadowing XVI.n XVI - Imaging
XVI.n - Imaging: Intralobular septal thickening - Crazy paving XVII.e XVII - Infections & related conditions
XVII.e - Pneumocystis jiroveci pneumonia

I.c I - Interstitial/parenchymal lung disease
I.c - Eosinophilic pneumonia (pulmonary infiltrates and eosinophilia) I.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.i I - Interstitial/parenchymal lung disease
I.i - Diffuse pulmonary calcification (calciphylaxis) II.f II - Pulmonary edema - Acute lung injury - ARDS
II.f - Hypoxemia, low oxygen saturation (may occur in isolation) II.h II - Pulmonary edema - Acute lung injury - ARDS
II.h - Overload pulmonary edema (including posttransfusional (TACO)) 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 VI.a VI - Pulmonary vasculopathies
VI.a - Pulmonary embolism - Venous thrombosis/thromboembolism VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VI.o VI - Pulmonary vasculopathies
VI.o - Air/gas embolism X.f X - Systemic/Distant conditions, syndromes and reactions
X.f - Anaphylaxis-Anaphylactoid reaction (can be fatal)

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.m I - Interstitial/parenchymal lung disease
I.m - ILD with a granulomatous component 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.q II - Pulmonary edema - Acute lung injury - ARDS
II.q - Respiratory distress or failure, not otherwise specified III.a III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.a - Alveolar hemorrhage (AH), diffuse AH (DAH) IV.c IV - Airway involvement
IV.c - Obliterative bronchiolitis (a pattern consistent with) (see also IVn, XVx) V.u V - Pleural and/or pericardial involvement
V.u - Eosinophilic pleuritis VI.a VI - Pulmonary vasculopathies
VI.a - Pulmonary embolism - Venous thrombosis/thromboembolism VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VIII.a VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.a - Angioedema (may cause UAO, asphyxia and death) VIII.c VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.c - Upper airway obstruction other than angioedema or hematoma VIII.w VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.w - Uvulitis, uvular edema 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 - Respiratory failure from ventilatory depression (due to neuromuscular blockade/paralysis) X.f X - Systemic/Distant conditions, syndromes and reactions
X.f - Anaphylaxis-Anaphylactoid reaction (can be fatal) X.u X - Systemic/Distant conditions, syndromes and reactions
X.u - Multiple organ dysfunction/failure (MODS/MOF) X.w X - Systemic/Distant conditions, syndromes and reactions
X.w - Eosinophilia myalgia syndrome (EMS) XI.b XI - Miscellaneous
XI.b - Chest pain (acute or subacute), lone or prominent XI.h XI - Miscellaneous
XI.h - Esophageal pathology (erosion, ulcer, tear, rupture, fistula) XI.r XI - Miscellaneous
XI.r - Death following exposure or poisoning XI.bi XI - Miscellaneous
XI.bi - Cyanide poisoning XII.d XII - Cardiovascular involvement / toxicity
XII.d - Myocarditis (can be fulminant) XII.f XII - Cardiovascular involvement / toxicity
XII.f - Cardiomyopathy (acute, subacute, chronic) XII.h XII - Cardiovascular involvement / toxicity
XII.h - Eosinophilic myocarditis XII.l XII - Cardiovascular involvement / toxicity
XII.l - Cardiac arrhythmias or dysrhythmias (AF, VT, VF, TdP) XII.m XII - Cardiovascular involvement / toxicity
XII.m - Cardiac- cardiorespiratory/pulmonary arrest XII.n XII - Cardiovascular involvement / toxicity
XII.n - Cardiovascular collapse - Cardiogenic shock - Hypotension XII.r XII - Cardiovascular involvement / toxicity
XII.r - Heart failure (biventricular, congestive) XII.w XII - Cardiovascular involvement / toxicity
XII.w - Asystole XII.ag XII - Cardiovascular involvement / toxicity
XII.ag - Bradycardia XII.ah XII - Cardiovascular involvement / toxicity
XII.ah - Tachycardia XII.ai XII - Cardiovascular involvement / toxicity
XII.ai - Cardiotoxicity XV.c XV - Pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.f XV - Pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.z XV - Pathology
XV.z - Path: Obliterative (constrictive) bronchiolitis (see also IVc, IVn) XIX.d XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.d - BAL: Gross or microscopic bleeding/hemorrhage XXIV.i XXIV - Veterinary medicine
XXIV.i - Veterinary: Respiratory/Ventilatory depression XXIV.j XXIV - Veterinary medicine
XXIV.j - Veterinary: Cardiotoxicity

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.m I - Interstitial/parenchymal lung disease
I.m - ILD with a granulomatous component II.a II - Pulmonary edema - Acute lung injury - ARDS
II.a - Pulmonary edema, noncardiogenic (NCPE) II.d II - Pulmonary edema - Acute lung injury - ARDS
II.d - Pulmonary edema, cardiogenic II.i II - Pulmonary edema - Acute lung injury - ARDS
II.i - Flash (fulminate) pulmonary edema III.a III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.a - Alveolar hemorrhage (AH), diffuse AH (DAH) IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma IV.f IV - Airway involvement
IV.f - Severe or catastrophic bronchospasm or asthma attack (can be fatal) IV.k IV - Airway involvement
IV.k - Bronchiectasis V.f V - Pleural and/or pericardial involvement
V.f - Pneumothorax VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VI.g VI - Pulmonary vasculopathies
VI.g - Foreign body pulmonary vasculopathy (Excipient lung disease) IX.d IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.d - Respiratory failure from ventilatory depression (due to neuromuscular blockade/paralysis) IX.i IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.i - Respiratory arrest - Apnea IX.s IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.s - Botulism (foodborne-, wound-) IX.ad IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.ad - Parsonage-Turner amyotrophic neuralgia-like syndrome XI.g XI - Miscellaneous
XI.g - Aspiration, aspiration pneumonia (w/wo demonstrable pharyngeal dysmotility) XI.r XI - Miscellaneous
XI.r - Death following exposure or poisoning XII.f XII - Cardiovascular involvement / toxicity
XII.f - Cardiomyopathy (acute, subacute, chronic) XII.l XII - Cardiovascular involvement / toxicity
XII.l - Cardiac arrhythmias or dysrhythmias (AF, VT, VF, TdP) XV.c XV - Pathology
XV.c - Path: Organizing pneumonia (OP/BOOP) pattern (see also Id) XV.s XV - Pathology
XV.s - Path: Pneumoconiosis (silicosis, talcosis, talcoma) XV.w XV - Pathology
XV.w - Path: Pulmonary edema (see also II/IIa) XVI.d XVI - Imaging
XVI.d - Imaging: Alveolar opacities or haze with a batwing or butterfly distribution XVII.b XVII - Infections & related conditions
XVII.b - Opportunistic pulmonary/systemic infections XXIV.c XXIV - Veterinary medicine
XXIV.c - Veterinary: Pulmonary edema

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) IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma IV.aa IV - Airway involvement
IV.aa - Occupational asthma VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension IX.a IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.a - Diaphragm/inspiratory muscle weakness/paralysis (w/wo ARF) X.a X - Systemic/Distant conditions, syndromes and reactions
X.a - DRES syndrome - DRESS-like reaction X.f X - Systemic/Distant conditions, syndromes and reactions
X.f - Anaphylaxis-Anaphylactoid reaction (can be fatal) XII.a XII - Cardiovascular involvement / toxicity
XII.a - Left or biventricular dysfunction/failure XII.f XII - Cardiovascular involvement / toxicity
XII.f - Cardiomyopathy (acute, subacute, chronic) XII.l XII - Cardiovascular involvement / toxicity
XII.l - Cardiac arrhythmias or dysrhythmias (AF, VT, VF, TdP) XII.p XII - Cardiovascular involvement / toxicity
XII.p - QTc prolongation XII.s XII - Cardiovascular involvement / toxicity
XII.s - Heart block (bundle branch- or AV-) XII.t XII - Cardiovascular involvement / toxicity
XII.t - Torsades de pointe XII.v XII - Cardiovascular involvement / toxicity
XII.v - Hypertrophic cardiomyopathy XV.cz XV - Pathology
XV.cz - Path: Lysosomal storage cardiomyopathy/cardiotoxicity

I.c I - Interstitial/parenchymal lung disease
I.c - Eosinophilic pneumonia (pulmonary infiltrates and eosinophilia) 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 IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma IV.f IV - Airway involvement
IV.f - Severe or catastrophic bronchospasm or asthma attack (can be fatal) IV.v IV - Airway involvement
IV.v - Deterioration/exacerbation of preexisting asthma or COPD V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VI.y VI - Pulmonary vasculopathies
VI.y - Pulmonary hypertension of the newborn (Persistent PHT) VIII.a VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.a - Angioedema (may cause UAO, asphyxia and death) X.a X - Systemic/Distant conditions, syndromes and reactions
X.a - DRES syndrome - DRESS-like reaction 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)

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.e I - Interstitial/parenchymal lung disease
I.e - Acute eosinophilic pneumonia (AEP) 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.u I - Interstitial/parenchymal lung disease
I.u - Relapsing or migrating pneumonitis/pneumonia (see also Id) I.v I - Interstitial/parenchymal lung disease
I.v - Abnormal lung function/pulmonary physiology (PFTs) without necessarily imaging or clinical evidence I.w I - Interstitial/parenchymal lung disease
I.w - Rapidly progressive ILD/pulmonary fibrosis (Hamman-Rich syndrome) 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 I.aj I - Interstitial/parenchymal lung disease
I.aj - Shrinking lung syndrome I.ax I - Interstitial/parenchymal lung disease
I.ax - Chronic pneumonitis II.b II - Pulmonary edema - Acute lung injury - ARDS
II.b - ARDS - Acute lung injury II.d II - Pulmonary edema - Acute lung injury - ARDS
II.d - Pulmonary edema, cardiogenic III.m III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.m - Coagulopathy IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma IV.c IV - Airway involvement
IV.c - Obliterative bronchiolitis (a pattern consistent with) (see also IVn, XVx) IV.n IV - Airway involvement
IV.n - Obstructive airway dysfunction (see also IVc, XVx) 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.s V - Pleural and/or pericardial involvement
V.s - Serositis - Polyserositis VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VII.a VII - Mediastinal involvement
VII.a - Lymphadenopathy (intrathoracic) VIII.t VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.t - Vocal cord paresis/paralysis 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 - Respiratory failure from ventilatory depression (due to neuromuscular blockade/paralysis) IX.r IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.r - Myasthenia gravis - Myasthenic-like syndrome IX.ab IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.ab - Guillain-Barré (or GB-like) syndrome (w/wo ARF) IX.ac IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.ac - Myositis of the respiratory muscles (May lead to respiratory muscle paralysis) X.a X - Systemic/Distant conditions, syndromes and reactions
X.a - DRES syndrome - DRESS-like reaction 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.e X - Systemic/Distant conditions, syndromes and reactions
X.e - Autoimmunity-Autoimmune conditions (+ANA, +anti-ds-DNA, +ANCAs, other auto-Abs) 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.h X - Systemic/Distant conditions, syndromes and reactions
X.h - Eosinophilic granulomatosis with polyangiitis (Churg-Strauss) 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.u X - Systemic/Distant conditions, syndromes and reactions
X.u - Multiple organ dysfunction/failure (MODS/MOF) X.am X - Systemic/Distant conditions, syndromes and reactions
X.am - Immune-related adverse effect/toxicity 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.ay X - Systemic/Distant conditions, syndromes and reactions
X.ay - Polymyalgia rheumatica XI.n XI - Miscellaneous
XI.n - Neutropenia, agranulocytosis (w/wo infection/sepsis) XI.y XI - Miscellaneous
XI.y - Adrenal suppression XI.ag XI - Miscellaneous
XI.ag - Vertebral compression fracture XI.au XI - Miscellaneous
XI.au - Graft vs. host disease in transplant recipients XI.av XI - Miscellaneous
XI.av - Deterioration of graft function in SOT recipients XI.ba XI - Miscellaneous
XI.ba - Nonrespiratory AE of interest 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.e XII - Cardiovascular involvement / toxicity
XII.e - Takotsubo (stress) cardiomyopathy XII.g XII - Cardiovascular involvement / toxicity
XII.g - Coronary artery disease (acute) - Myocardial ischemia/infarction XII.l XII - Cardiovascular involvement / toxicity
XII.l - Cardiac arrhythmias or dysrhythmias (AF, VT, VF, TdP) XII.n XII - Cardiovascular involvement / toxicity
XII.n - Cardiovascular collapse - Cardiogenic shock - Hypotension XII.s XII - Cardiovascular involvement / toxicity
XII.s - Heart block (bundle branch- or AV-) XII.ai XII - Cardiovascular involvement / toxicity
XII.ai - Cardiotoxicity XII.ax XII - Cardiovascular involvement / toxicity
XII.ax - Necrotizing myocarditis (w/o evidence for CAD) XII.ba XII - Cardiovascular involvement / toxicity
XII.ba - Sudden cardiac death 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.l XV - Pathology
XV.l - Path: Pulmonary fibrosis (not otherwise specified or unclassifiable) XV.v XV - Pathology
XV.v - Path: Micronodular organizing pneumonia/BOOP XV.x XV - Pathology
XV.x - Path: Acute/subacute bronchiolitis (see also IVc, IVi) XV.ba XV - Pathology
XV.ba - Path: Granulomatous lymphadenopathy XV.co XV - Pathology
XV.co - Path: Foamy inclusions in alveolar macrophages and/or in other lung cells XV.cp XV - Pathology
XV.cp - Path: Pneumocyte vacuolization 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.bh XVI - Imaging
XVI.bh - Imaging: F18-PET scan positive lympadenopathy XVI.bt XVI - Imaging
XVI.bt - Imaging: A subsolid lung nodule or nodules XVII.b XVII - Infections & related conditions
XVII.b - Opportunistic pulmonary/systemic infections XVII.c XVII - Infections & related conditions
XVII.c - Aspergillosis, pulmonary (invasive, allergic [ABPA], or mycetoma) XVII.e XVII - Infections & related conditions
XVII.e - Pneumocystis jiroveci pneumonia XVII.g XVII - Infections & related conditions
XVII.g - Tuberculosis (pulmonary, pulmonary, extrapulmonary or disseminated). Reactivation or de novo XVII.q XVII - Infections & related conditions
XVII.q - Viral pneumonia XVII.r XVII - Infections & related conditions
XVII.r - Fungal infection (pulmonary/extrapulmonary) 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 XIX.c XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.c - BAL: An excess proportion of eosinophils

IV.aa IV - Airway involvement
IV.aa - Occupational asthma VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension

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.g I - Interstitial/parenchymal lung disease
I.g - Pulmonary fibrosis I.m I - Interstitial/parenchymal lung disease
I.m - ILD with a granulomatous component I.v I - Interstitial/parenchymal lung disease
I.v - Abnormal lung function/pulmonary physiology (PFTs) without necessarily imaging or clinical evidence I.y I - Interstitial/parenchymal lung disease
I.y - Progression, acceleration or exacerbation of preexisting ILD/fibrosis 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 IV.a IV - Airway involvement
IV.a - Bronchospasm - Wheezing - Asthma IV.d IV - Airway involvement
IV.d - Cough (lone) IV.w IV - Airway involvement
IV.w - Plugs/casts in the airways V.a V - Pleural and/or pericardial involvement
V.a - Pleural effusion (uni- or bilateral) (can accompany DI-LDs) VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension 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 VII.a VII - Mediastinal involvement
VII.a - Lymphadenopathy (intrathoracic) VII.e VII - Mediastinal involvement
VII.e - Granulomatous mediastinal lymphadenopathy VIII.a VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.a - Angioedema (may cause UAO, asphyxia and death) 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.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.u X - Systemic/Distant conditions, syndromes and reactions
X.u - Multiple organ dysfunction/failure (MODS/MOF) 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.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) XVII.g XVII - Infections & related conditions
XVII.g - Tuberculosis (pulmonary, pulmonary, extrapulmonary or disseminated). Reactivation or de novo

I.b I - Interstitial/parenchymal lung disease
I.b - Pneumonitis (ILD) VI.a VI - Pulmonary vasculopathies
VI.a - Pulmonary embolism - Venous thrombosis/thromboembolism VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension

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.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 - Pulmonary 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 - An area or areas of consolidation 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) VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension 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) 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.f XV - Pathology
XV.f - Path: Diffuse alveolar damage (DAD-pattern) (see also IL) XV.i XV - Pathology
XV.i - Path: Pneumocyte atypia (reactive epithelial cells) (a.k.a. the "Napoleon Hat" sign) XVII.g XVII - Infections & related conditions
XVII.g - Tuberculosis (pulmonary, pulmonary, extrapulmonary or disseminated). Reactivation or de novo XIX.a XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.a - BAL: An excess proportion of lymphocytes

III.a III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.a - Alveolar hemorrhage (AH), diffuse AH (DAH) III.d III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.d - Alveolar hemorrhage, diffuse (ANCA-positive/-related) VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension IX.t IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.t - CNS involvement/dysfunction/damage X.b X - Systemic/Distant conditions, syndromes and reactions
X.b - Antiphospholipid antibodies w/wo the APL syndrome X.j X - Systemic/Distant conditions, syndromes and reactions
X.j - Myopathy-Myositis-Polymyositis (see also under Xba) 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.ad X - Systemic/Distant conditions, syndromes and reactions
X.ad - Skin purpura, ecchymoses or necrosis 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) XII.g XII - Cardiovascular involvement / toxicity
XII.g - Coronary artery disease (acute) - Myocardial ischemia/infarction XV.al XV - Pathology
XV.al - Path: Pulmonary hypertension incl. angiomatoid vasculopathy XV.aw XV - Pathology
XV.aw - Path: Skin vasculopathy/vasculitis/fibrin thrombi XVIII.t XVIII - Distinctive patterns - 'Eye-catchers'
XVIII.t - Eye catcher: Purpuric/Ecchymotic/Cyanotic lesions of the earlobes and/or nose

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.c III - Pulmonary/alveolar./airway hemorrhage/bleeding
III.c - Hemoptysis 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.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VI.d VI - Pulmonary vasculopathies
VI.d - Pulmonary vasculitis or capillaritis VIII.i VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.i - Midline destructive lesions VIII.o VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.o - Perforation of the nasal septum VIII.ai VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.ai - Nasal, palatal and/or pharyngeal pathology IX.t IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.t - CNS involvement/dysfunction/damage X.j X - Systemic/Distant conditions, syndromes and reactions
X.j - Myopathy-Myositis-Polymyositis (see also under Xba) X.o X - Systemic/Distant conditions, syndromes and reactions
X.o - Neutrophilic dermatosis (Pyoderma, Sweet syndrome) X.s X - Systemic/Distant conditions, syndromes and reactions
X.s - Vasculitis, pulmonary (w/wo AH), extrapulmonary, systemic: ANCA-positive X.ad X - Systemic/Distant conditions, syndromes and reactions
X.ad - Skin purpura, ecchymoses or necrosis 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) XI.r XI - Miscellaneous
XI.r - Death following exposure or poisoning XII.g XII - Cardiovascular involvement / toxicity
XII.g - Coronary artery disease (acute) - Myocardial ischemia/infarction XII.aa XII - Cardiovascular involvement / toxicity
XII.aa - Arterial (aorta, limb) vasoconstriction and/or ischemia, acute XV.al XV - Pathology
XV.al - Path: Pulmonary hypertension incl. angiomatoid vasculopathy XV.aw XV - Pathology
XV.aw - Path: Skin vasculopathy/vasculitis/fibrin thrombi XVI.b XVI - Imaging
XVI.b - Imaging: Ground-glass opacities (GGO) / shadowing XVIII.t XVIII - Distinctive patterns - 'Eye-catchers'
XVIII.t - Eye catcher: Purpuric/Ecchymotic/Cyanotic lesions of the earlobes and/or nose

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.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 VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension IX.r IX - Neuromuscular / CNS involvement - Disordered breathing during sleep
IX.r - Myasthenia gravis - Myasthenic-like syndrome

VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension