ICD-10-CM > H60-H95 > H60-H62 > H60 > H60.5 > H60.52 H60.52 Acute chemical otitis externa Non-Billable/Non-Specific Codes H60.521Acute chemical otitis externa, right earH60.522Acute chemical otitis externa, left earH60.523Acute chemical otitis externa, bilateralH60.529Acute chemical otitis externa, unspecified ear