beach ear DOID:10518 An otitis externa which is a microbial infection that occurs suddenly, rapidly worsens, and becomes very painful and alarming. It is caused by swimming in polluted water, scratching the ear or inside the ear and object stuck in the ear. It is occasionally associated with middle ear infection or upper respiratory infections such as colds. ICD9CM:380.12 SNOMEDCT_US_2025_09_01:39149004 acute bacterial inflammation of external ear disease_ontology Tank ear UMLS_CUI:C3831782 acute otitis externa, diffuse acute swimmer's ear acute swimmers' ear otitis externa