ICD-10 Code C44.219 – Basal cell carcinoma of skin of left ear and external auricular canal (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.219 – Basal cell carcinoma of skin of left ear and external auricular canal
What it is
This code identifies basal cell carcinoma located on the left ear or in the external auricular canal. It is a malignant skin tumor arising from basal cells, documented by site.
Clinical signs
Typical findings include a slow-growing, pearly, translucent, or ulcerated skin lesion on the ear. Clinical features vary; refer to documentation.
When to use this code
Use C44.219 when the provider documents basal cell carcinoma specifically involving the left ear or external auricular canal. Apply it when the site is confirmed in the diagnosis, pathology, or operative note. If laterality or exact ear site is unclear, check documentation.
Do not use for
Do not use this code for basal cell carcinoma of the right ear, unspecified ear, or other skin sites. It is also incorrect for non-melanoma skin lesions without a documented basal cell carcinoma diagnosis.
Coding tip
Verify both laterality and ear location in the record before assigning this code.