ICD-10 Code C44.1291 – Squamous cell carcinoma of skin of left upper eyelid, including canthus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.1291 – Squamous cell carcinoma of skin of left upper eyelid, including canthus
What it is
This code identifies a malignant squamous cell carcinoma arising in the skin of the left upper eyelid, including the canthus. Use it when documentation specifies this exact site and laterality.
Clinical signs
Clinical features may include a persistent eyelid lesion, crusting, ulceration, scaling, or a nonhealing nodule. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents squamous cell carcinoma of the skin on the left upper eyelid, with or without canthal involvement. It also fits pathology-confirmed malignant lesions at this exact location when laterality is stated clearly. If the record only says eyelid cancer without site detail, check documentation.
Do not use for
Do not use this code for benign eyelid lesions, basal cell carcinoma, or squamous cell carcinoma at a different skin site. If the chart does not specify the left upper eyelid, including canthus, check documentation.
Coding tip
Confirm both histology and exact anatomic site before assigning C44.1291.