ICD-10-CM > H60-H95 > H60-H62 > H61 > H61.0 > H61.02 H61.02 Chronic perichondritis of external ear Non-Billable/Non-Specific Codes H61.021Chronic perichondritis of right external earH61.022Chronic perichondritis of left external earH61.023Chronic perichondritis of external ear, bilateralH61.029Chronic perichondritis of external ear, unspecified ear