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.f IV - Airway involvement
IV.f - Severe or catastrophic bronchospasm or asthma attack (can be fatal) VI.d VI - Pulmonary vasculopathies
VI.d - Pulmonary vasculitis or capillaritis VII.a VII - Mediastinal involvement
VII.a - Lymphadenopathy (intrathoracic) 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) X.h X - Systemic/Distant conditions, syndromes and reactions
X.h - Eosinophilic granulomatosis with polyangiitis (Churg-Strauss) X.m X - Systemic/Distant conditions, syndromes and reactions
X.m - Vascultis (pulmonary, extrathoracic or systemic)-ANCA status unknown or negative) X.t X - Systemic/Distant conditions, syndromes and reactions
X.t - Jarisch-Herxheimer reaction

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 V.f V - Pleural and/or pericardial involvement
V.f - Pneumothorax X.t X - Systemic/Distant conditions, syndromes and reactions
X.t - Jarisch-Herxheimer reaction 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)

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