Ca in situ skin of left lower eyelid, including canthus

Carcinoma in situ of skin of left lower eyelid, including canthus

📋Clinical Description

This code signifies the presence of non-invasive malignant cells confined to the epidermis (carcinoma in situ) affecting the skin of the left lower eyelid, specifically including the canthus. It represents an early stage of cancer that has not spread beyond the original layer of cells.

🎯When to Use

Apply this code when documentation clearly indicates carcinoma in situ originating from the skin of the left lower eyelid, encompassing the canthal region. This is appropriate for biopsy results confirming intraepidermal malignancy without evidence of invasion.

💡Coding Tips

Ensure documentation specifies "in situ" and the exact anatomical location (left lower eyelid, including canthus).
Distinguish from invasive squamous cell carcinoma (C44.122) or basal cell carcinoma (C44.112) of the same site.
Laterality is crucial; do not confuse with right lower eyelid involvement.

AI-generated reference — verify against official guidelines

Code Hierarchy

▲D04.12Carcinoma in situ of skin of left eyelid, including canthus

D04.122(current)

Same Category

D04Carcinoma in situ of skin D04.0Carcinoma in situ of skin of lip D04.1Carcinoma in situ of skin of eyelid, including canthus D04.10Carcinoma in situ of skin of unsp eyelid, including canthus D04.11Carcinoma in situ of skin of right eyelid, including canthus D04.111Ca in situ skin of right upper eyelid, including canthus