ICD-10 Code C44.1292 – Squamous cell carcinoma of skin of left lower eyelid, including canthus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.1292 – Squamous cell carcinoma of skin of left lower eyelid, including canthus
What it is
This code identifies a malignant squamous cell tumor arising in the skin of the left lower eyelid, including the canthus. Use it when documentation specifies this exact eyelid location.
Clinical signs
Typical findings include a persistent eyelid lesion that may be scaly, crusted, ulcerated, or enlarging. Clinical features vary; refer to documentation, especially when pathology confirms squamous cell carcinoma.
When to use this code
Use C44.1292 when the provider documents squamous cell carcinoma of the left lower eyelid, including the inner or outer canthus. It is appropriate for confirmed primary skin cancer at this site, whether identified clinically or by biopsy. If the record only says “eyelid cancer” or does not specify laterality and site, check documentation.
Do not use for
Do not use this code for non-melanoma skin cancers at other eyelid locations or for lesions on the conjunctiva. Do not assume it applies to unspecified eyelid cancers or metastatic disease without clear documentation.
Coding tip
Match the exact eyelid side and margin details in the pathology or operative note before assigning this code.