Malignant melanoma of right upper eyelid, including canthus

This code signifies a primary malignant melanoma originating in the skin of the right upper eyelid, encompassing the canthal region. Malignant melanoma is an aggressive form of skin cancer arising from melanocytes. This specific code indicates the precise anatomical location of the tumor.

Apply this code when documentation clearly states a diagnosis of malignant melanoma affecting the right upper eyelid, including any involvement of the inner or outer canthus. This is typically supported by pathology reports confirming melanoma and physician notes specifying the exact location.

• Ensure the laterality (right) and specific eyelid (upper) are clearly documented.
• Verify that the diagnosis is explicitly "malignant melanoma" and not another type of skin cancer.
• Confirm the tumor is primary to the eyelid and not a metastatic lesion from another site.