Melanocytic nevi of unspecified eyelid, including canthus

This code signifies the presence of a melanocytic nevus, commonly known as a mole, located on an unspecified eyelid or the canthus (the corner of the eye). These are benign proliferations of melanocytes, which are the cells that produce pigment.

Apply this code when documentation indicates a benign melanocytic nevus on an eyelid, and the specific laterality (right or left) is not specified. This code is appropriate when the physician's notes describe a "mole on the eyelid" without further detail regarding which eye.

• Ensure the documentation explicitly states "unspecified eyelid" or lacks laterality for the nevus.
• Do not use this code if the nevus is described as malignant or suspicious; instead, refer to the C43 series for melanoma.
• If the laterality is specified (e.g., right upper eyelid), use the more specific D22.11 or D22.12 codes.