ICD-10 Code D22.21 – Melanocytic nevi of right ear and external auricular canal (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D22.21 – Melanocytic nevi of right ear and external auricular canal
What it is
D22.21 identifies a benign melanocytic nevus located on the right ear or within the external auricular canal. Use it for a documented mole or nevus in that specific anatomic site.
Clinical signs
These lesions are usually pigmented, well-circumscribed, and stable, though appearance can vary. Clinical features vary; refer to documentation if the lesion is atypical, changing, or otherwise not clearly described.
When to use this code
Use this code when the provider documents a melanocytic nevus on the right ear or external auricular canal. It is appropriate for routine charting of a benign nevus, including incidental findings, if the side and site are specified.
If the record only says “nevus” without location, check documentation before coding. You should also confirm that the lesion is not described as suspicious, malignant, or another skin condition.
Do not use for
Do not use D22.21 for malignant melanoma, dysplastic nevus, or nonspecific skin lesions. Check documentation if the site is the left ear, unspecified ear, or a different external ear structure.
Coding tip
Verify both laterality and exact ear location in the note before assigning D22.21.