ICD-10-CM > C00-D49 > D10-D36 > D22 > D22.2 D22.2 Melanocytic nevi of ear and external auricular canal Non-Billable/Non-Specific Codes D22.20Melanocytic nevi of unspecified ear and external auricular canalD22.21Melanocytic nevi of right ear and external auricular canalD22.22Melanocytic nevi of left ear and external auricular canal