Site-Specific Factor 6

Parapharyngeal, Parotid, and Suboccipital/Retroauricular Lymph Nodes for Head and Neck

Notes

**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:** If involved regional node levels are documented as a range, or if the involved nodes overlap multiple levels, code all levels specified. **Note 3:** If regional node(s) are known to be positive but the level of node(s) involved is unknown, use code 000.

Default

999

NAACCR Item

NAACCR #2930

Metadata

None
Code Description
000 No involvement of any group:
Parapharyngeal lymph nodes
Parotid (preauricular, periparotid, and/or intraparotid) lymph nodes
Suboccipital/retroauricular lymph nodes
100 Parapharyngeal lymph node(s) involved
010 Parotid (preauricular, periparotid, and/or intraparotid) lymph node(s) involved
001 Suboccipital/retroauricular lymph node(s) involved
110 Involvement of two groups:
Parapharyngeal lymph nodes
Parotid (preauricular, periparotid, and/or intraparotid) lymph nodes
101 Involvement of two groups:
Parapharyngeal lymph nodes
Suboccipital/retroauricular lymph nodes
011 Involvement of two groups:
Parotid (preauricular, periparotid, and/or intraparotid) lymph nodes
Suboccipital lymph nodes
111 Involvement of three groups:
Parapharyngeal lymph nodes
Parotid (preauricular, periparotid, and/or intraparotid) lymph nodes
Suboccipital/retroauricular lymph nodes
988 Not applicable: Information not collected for this case
999 Unknown if regional lymph node involved, not stated
Regional lymph nodes cannot be assessed
Not documented in patient record