I.s I - Interstitial/parenchymal lung disease
I.s - A mass or masses II.b II - Pulmonary edema - Acute lung injury - ARDS
II.b - ARDS - Acute lung injury IV.c IV - Airway involvement
IV.c - Obliterative bronchiolitis (a pattern consistent with) (see also IVn, XVx) IV.r IV - Airway involvement
IV.r - Airway pigmentation (black, bluish, petechial) V.x V - Pleural and/or pericardial involvement
V.x - Black pleural effusion XV.q XV - Pathology
XV.q - Path: Foreign body deposits/granulomatous reaction XV.aa XV - Pathology
XV.aa - Path: Foreign body bronchiolitis (see also IVi) XXIV.k XXIV - Veterinary medicine
XXIV.k - Veterinary: Granulomatous interstitial pneumonia