ICD-10 Code C44.131 – Sebaceous cell carcinoma of skin of unspecified eyelid, including canthus (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C44.131 – Sebaceous cell carcinoma of skin of unspecified eyelid, including canthus
What it is
This code identifies a malignant sebaceous gland tumor arising in the skin of the eyelid or canthus when the exact eyelid site is not specified. Use it for documented sebaceous cell carcinoma involving that anatomic area.
Clinical signs
Patients may have a persistent eyelid nodule or thickened lesion that does not resolve. Clinical features vary; refer to documentation, and note that diagnosis is typically confirmed by pathology.
When to use this code
Use this code when the provider documents sebaceous cell carcinoma of the eyelid or canthus but does not specify upper or lower eyelid. It also fits cases described as involving the eyelid skin without further laterality detail. Check documentation if the record names a different periocular site or a non-skin origin.
Do not use for
Do not use it for benign eyelid lesions, non-sebaceous skin cancers, or tumors documented at a different eye-adjacent site. If the chart specifies a more exact eyelid location, code that more specific entry instead.
Coding tip
Match the code to the exact wording in the pathology or operative report, and query for laterality or eyelid site if it is missing.