Site-Specific Factor 4

Perineural Invasion

Notes

**Note:** Code the presence or absence of perineural invasion as documented in the pathology report. * Assign code 999 if histologic examination of the primary site is performed and perineural invasion is not mentioned

Default

999

NAACCR Item

NAACCR #2910

Metadata

None
Code Description
000 Perineural invasion not present/not identified
010 Perineural Invasion present/identified
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