380 Disorders of external ear 
380.0 Perichondritis and chondritis of pinna 
380.00 Perichondritis of pinna, unspecified convert 380.00 to ICD-10-CM 380.01 Acute perichondritis of pinna convert 380.01 to ICD-10-CM 380.02 Chronic perichondritis of pinna convert 380.02 to ICD-10-CM
380.03 Chondritis of pinna convert 380.03 to ICD-10-CM 380.1 Infective otitis externa 380.10 Infective otitis externa, unspecified convert 380.10 to ICD-10-CM 380.11 Acute infection of pinna convert 380.11 to ICD-10-CM 380.12 Acute swimmers' ear convert 380.12 to ICD-10-CM 380.13 Other acute infections of external ear convert 380.13 to ICD-10-CM 380.14 Malignant otitis externa convert 380.14 to ICD-10-CM 380.15 Chronic mycotic otitis externa convert 380.15 to ICD-10-CM 380.16 Other chronic infective otitis externa convert 380.16 to ICD-10-CM 380.2 Other otitis externa 380.21 Cholesteatoma of external ear convert 380.21 to ICD-10-CM 380.22 Other acute otitis externa convert 380.22 to ICD-10-CM 380.23 Other chronic otitis externa convert 380.23 to ICD-10-CM 380.3 Noninfectious disorders of pinna 380.30 Disorder of pinna, unspecified convert 380.30 to ICD-10-CM 380.31 Hematoma of auricle or pinna convert 380.31 to ICD-10-CM 380.32 Acquired deformities of auricle or pinna convert 380.32 to ICD-10-CM 380.39 Other noninfectious disorders of pinna convert 380.39 to ICD-10-CM 380.4 Impacted cerumen convert 380.4 to ICD-10-CM 380.5 Acquired stenosis of external ear canal 380.50 Acquired stenosis of external ear canal, unspecified as to cause convert 380.50 to ICD-10-CM 380.51 Acquired stenosis of external ear canal secondary to trauma convert 380.51 to ICD-10-CM 380.52 Acquired stenosis of external ear canal secondary to surgery convert 380.52 to ICD-10-CM 380.53 Acquired stenosis of external ear canal secondary to inflammation convert 380.53 to ICD-10-CM 380.8 Other disorders of external ear 380.81 Exostosis of external ear canal convert 380.81 to ICD-10-CM 380.89 Other disorders of external ear convert 380.89 to ICD-10-CM 380.9 Unspecified disorder of external ear convert 380.9 to ICD-10-CM