D04.121
BillableCarcinoma in situ of skin of left upper eyelid, including canthus
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Early stage squamous cell cancer (non-melanoma) found on the skin of the left upper eyelid or the corner of the eye that has not yet invaded deeper layers.
Coding Tips
- •This code is specific to the left upper eyelid; confirm left side and upper eyelid location are documented
- •Eyelid carcinomas require careful documentation due to anatomical specificity
Code Hierarchy
└D04Carcinoma in situ of skin└D04.1Carcinoma in situ of skin of eyelid, including canthus└D04.12Carcinoma in situ of skin of left eyelid, including canthus└D04.121Carcinoma in situ of skin of left upper eyelid, including canthus
└D04.121Carcinoma in situ of skin of left upper eyelid, including canthus