Collaborative Stage

Collaborative Stage for TNM 7 - Revised 12/13/2009 [ Schema ]

CS Site-Specific Factor 9
Mohs Layers

Note 1: Code the number of Mohs micrographic surgical layers required to clear the tumor, as stated on the operative report.
Note 2: Use codes 991, 992, and 998 ONLY if specific number of Mohs layers not documented.

Code	Description
001-010	Number of Mohs micrographic surgical layers required to clear tumor
011	10 or more Mohs micrographic surgical layers required to clear tumor
988	Not applicable: Information not collected for this case
991	Less than 3 Mohs micrographic surgical layers required to clear tumor
992	Greater than 3 Mohs micrographic surgical layers required to clear tumor
997	Mohs surgery performed, unknown number of micrographic surgical layers required to clear tumor
998	Mohs surgery not performed
999	Unknown Information cannot be assessed Not documented in patient record