Site-Specific Factor 2
Clark Level
Notes
**Note 1:** Code the Clark level as documented in the pathology report. **Note 2:** Record only for squamous cell carcinoma of skin of eyelid. * For other histologies, use code 987, not applicableDefault
988NAACCR Item
NAACCR #2890| Code | Description |
|---|---|
| 010 | Clark level I In situ, intraepidermal, intraepithelial, noninvasive Basement membrane of epidermis is intact |
| 020 | Clark level II Papillary dermis invaded |
| 030 | Clark level III Papillary-reticular dermal interface invaded |
| 040 | Clark level IV Reticular dermis invaded |
| 050 | Clark level V Subcutaneous tissue invaded (through entire dermis) |
| 987 | Not applicable, not squamous cell carcinoma of skin of eyelid |
| 988 | Not applicable: Information not collected for this case |
| 998 | No histologic examination of primary site |
| 999 | Unknown or no information Not documented in patient record |