CS Site-Specific Factor 10

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

988

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 (If this information is required by your standard setter, use of code 988 may result in an edit error.)
998	No histologic examination of primary site
999	Unknown Clark level or no information Not documented in patient record