ICD-10 Code C44.112 – Basal cell carcinoma of skin of right eyelid, including canthus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.112 – Basal cell carcinoma of skin of right eyelid, including canthus
What it is
This code identifies a basal cell carcinoma located on the right eyelid, including the canthus. Use it when documentation specifies this exact anatomic site and the malignancy is basal cell type.
Clinical signs
Typical findings include a slow-growing eyelid lesion that may appear pearly, rolled, ulcerated, or crusted. Clinical features vary; refer to documentation, especially when pathology or biopsy confirms the diagnosis.
When to use this code
Use this code when the provider documents basal cell carcinoma of the right upper or lower eyelid, or the right canthus, without a more specific laterality code. It is appropriate for confirmed primary skin cancer at this site. If the record only says eyelid cancer or skin lesion, check documentation before assigning the code.
Do not use for
Do not use this code for basal cell carcinoma on the left eyelid, bilateral eyelids, or other facial skin sites. Do not use it when the diagnosis is uncertain or when documentation names a different histology.
Coding tip
Match laterality and exact eyelid location in the pathology or operative note before coding.