Collaborative Stage

Collaborative Stage for TNM 7 - Revised 11/11/2010 [ Schema ]

CS Site-Specific Factor 6
Perineural Invasion

Note: Code the presence or absence of perineural invasion as documented in the pathology report. Use code 000 if histologic examination of primary site was performed, the pathology report is available for review, and perineural invasion is not mentioned.

Code	Description
000	Perineural invasion not present/not identified
010	Perineural invasion present/identified
888	OBSOLETE DATA CONVERTED V0200 See code 988 Not applicable for this site
988	Not applicable: Information not collected for this case (May include cases converted from code 888 used in CSv1 for "Not applicable" or when the item was not collected. If this item is required to derive T, N, M, or any stage, use of code 988 may result in an error.)
997	Histologic examination of primary site performed, unknown results
998	No histologic examination of primary site
999	Unknown or no information Not documented in patient record