IV.m IV - Airway involvement
IV.m - Bronchial stenosis/stricture IV.p IV - Airway involvement
IV.p - Thermal, chemical or caustic airway injury IV.s IV - Airway involvement
IV.s - Lolalized airway inflammation/burgeoning/stenosis: The pill aspiration syndrome VII.a VII - Mediastinal involvement
VII.a - Lymphadenopathy (intrathoracic) VIII.ar VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.ar - Chemical laryngitis XV.az XV - Pathology
XV.az - Path: Localized/focal bronchiolitis XV.bg XV - Pathology
XV.bg - Path: Tracheal or bronchial wall ulceration (see also IVs) XV.bk XV - Pathology
XV.bk - Path: Stainable iron in airway wall (see also IVs) XIX.e XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.e - BAL: Stainable iron in macrophages

IV.d IV - Airway involvement
IV.d - Cough (lone) IV.h IV - Airway involvement
IV.h - Large airway necrosis IV.m IV - Airway involvement
IV.m - Bronchial stenosis/stricture VIII.c VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.c - Upper airway obstruction other than angioedema or hematoma VIII.d VIII - Central-large-upper airway (incl. pharyngeal-nasal) involvement
VIII.d - Thermal (burns, frostbite), chemical or caustic facial and/or airway injury XI.i XI - Miscellaneous
XI.i - Esophageal toxicity XV.bg XV - Pathology
XV.bg - Path: Tracheal or bronchial wall ulceration (see also IVs)