aspiration pneumonitis lipid pneumonia An aspiration pneumonitis resulting from the aspiration of lipids. It is the result of a foreign body-type reaction to the presence of lipid material within the lung parenchyma. It is caused by inhalation of nasal drops with oil base or cosmetic oil and aspiration of mineral oil when used as a laxative agent. MESH:D011017 UMLS_CUI:C0032298 ICD10CM:J69.1 DOID:13015 disease_ontology SNOMEDCT_US_2025_09_01:416916004 DOID:3241 Exogenous lipoid pneumonia Lipoid pneumonitis