Site-Specific Factor 5

Levels VI-VII and Facial Lymph Nodes for Head and Neck


**Note 1:** **Site-Specific Factors 3-6** are used to code the presence or absence of lymph node involvement in each of 7 different levels and other groups defined by TNM. The definitions of the levels are the same for all applicable head and neck sites. One digit is used to represent lymph nodes of a single level, with the digits of **Site-Specific Factor 3** representing lymph nodes of Levels I-III; the digits of **Site-Specific Factor 4** representing lymph nodes of Levels IV and V and the retropharyngeal nodes; the digits of **Site-Specific Factor 5** representing lymph nodes of Levels VI and VII and the facial nodes; and the digits of **Site-Specific Factor 6** representing the remaining Other groups as defined by TNM. In each digit, a code 1 means yes, the nodes are involved. **Note 2:** Facial nodes include buccinator, mandibular, and nasolabial lymph nodes. **Note 3:** If involved regional node levels are documented as a range, or if the involved nodes overlap multiple levels, code all levels specified. **Note 4:** If regional node(s) are known to be positive but the level of node(s) involved is unknown, use code 000. **Note 5:** Level VI is also referred to as * Level VI - Anterior compartment group




NAACCR #2920


Code Description
000 No involvement in Levels VI or VII or facial lymph nodes
100 Level VI lymph node(s) involved
010 Level VII lymph node(s) involved
001 Facial lymph node(s) involved
110 Levels VI and VII lymph nodes involved
101 Levels VI and facial lymph nodes involved
011 Levels VII and facial lymph nodes involved
111 Levels VI and VII and facial lymph nodes involved
988 Not applicable: Information not collected for this case
999 Unknown if regional lymph node(s) involved, not stated
Regional lymph nodes cannot be assessed
Not documented in patient record