ICD-10 Code C44.1222 – Squamous cell carcinoma of skin of right lower eyelid, including canthus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.1222 – Squamous cell carcinoma of skin of right lower eyelid, including canthus
What it is
This code identifies a malignant squamous cell carcinoma arising in the skin of the right lower eyelid, including the canthus. Use it when the record specifies this exact eyelid location.
Clinical signs
Typical findings include a persistent, enlarging eyelid lesion that may appear scaly, crusted, ulcerated, or bleeding. Clinical features vary; refer to documentation.
When to use this code
Use C44.1222 when the provider documents squamous cell carcinoma of the skin on the right lower eyelid, with or without canthal involvement. It is appropriate for confirmed primary skin cancer at this site. If the note only says “eyelid cancer” or gives a different eyelid laterality, check documentation before coding.
Do not use for
Do not use this code for lesions on the upper eyelid, left eyelid, or unspecified eyelid. It is also not appropriate for non-melanoma skin lesions without a documented squamous cell carcinoma diagnosis.
Coding tip
Verify laterality and eyelid subsite in the pathology or assessment note before assigning C44.1222.