ICD-10-CM > H60-H95 > H60-H62 > H61 > H61.3 > H61.30 H61.30 Acquired stenosis of external ear canal, unspecified Non-Billable/Non-Specific Codes H61.301Acquired stenosis of right external ear canal, unspecifiedH61.302Acquired stenosis of left external ear canal, unspecifiedH61.303Acquired stenosis of external ear canal, unspecified, bilateralH61.309Acquired stenosis of external ear canal, unspecified, unspecified ear