Site-Specific Factor 10

Clark Level

Notes

**Note:** Code the Clark level as documented in the pathology report.

Default

988

NAACCR Item

NAACCR #2864
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)
988 Not applicable: Information not collected for this case
998 No histologic examination of primary site
999 Unknown Clark level or no information
Not documented in patient record