ICD-10 Code D22.22 – Melanocytic nevi of left ear and external auricular canal (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D22.22 – Melanocytic nevi of left ear and external auricular canal
What it is
This code identifies a benign melanocytic nevus located on the left ear or within the external auricular canal. Use it for a mole or similar pigmented skin lesion documented in that specific site.
Clinical signs
Findings usually include a localized pigmented or raised lesion consistent with a nevus. Clinical features vary; refer to documentation for the exact appearance, size, and site.
When to use this code
Use D22.22 when the provider documents a melanocytic nevus specifically affecting the left ear or external auricular canal. It is appropriate for confirmed benign nevi, whether incidentally noted or evaluated because of cosmetic concern or local irritation.
Code it only when the record supports the left-sided ear location. If laterality or exact site is unclear, check documentation before assigning the code.
Do not use for
Do not use this code for malignant melanoma, atypical nevi, or nonspecific skin lesions without a documented melanocytic nevus. Check documentation if the lesion is on the right ear or another site.
Coding tip
Verify both laterality and the external ear site in the note before coding, because the location drives selection of D22.22.