D04.11 (Carcinoma in situ of skin of right eyelid, including canthus) compared with D04.12 (Carcinoma in situ of skin of left eyelid, including canthus), from the official CMS tabular data. D04.11 and D04.12 code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. D04.11 and D04.12 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| D04.11Carcinoma in situ of skin of right eyelid, including canthus | D04.12Carcinoma in situ of skin of left eyelid, including canthus | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | C00-D49 — Neoplasms (C00-D49) | C00-D49 — Neoplasms (C00-D49) |
| Definition | Carcinoma in situ of skin of right eyelid, including canthus is a non-billable ICD-10-CM category code (D04.11). | Carcinoma in situ of skin of left eyelid, including canthus is a non-billable ICD-10-CM category code (D04.12). |
| Includes | Bowen's disease erythroplasia grade III intraepithelial neoplasia Queyrat's erythroplasia | Bowen's disease erythroplasia grade III intraepithelial neoplasia Queyrat's erythroplasia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources