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 mentionedDefault
999NAACCR Item
NAACCR #2910Metadata
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 |