Base of Tongue and Lingual Tonsil (excluding Malignant Melanoma)

Primary Site Histology Staging Type
C019, C024 8000-8576, 8940-8950, 8980-8981 TNM 7 and Summary Stage
C019, C024 8577-8713, 8800-8939, 8951-8979, 8982-9136, 9141-9582, 9700-9701 Summary Stage only

If you are working with a site/histology that only summary stages and you need to directly code it, please use the SEER Summary Stage 2000 manual

Notes

C019 Base of tongue, NOS
C024 Lingual tonsil

Note 1: This schema is based on the UICC chapter Pharynx, pages 30-38.

  • Primary site C024 is not listed in this chapter of the UICC manual; however, it is included in this schema and TNM staged if appropriate histology criteria are met

Note 2: In addition to directly assigning TNM, Summary Stage 2000 (SS2000) must be captured. If directly assigning SS2000, use the Base of Tongue, Lingual Tonsil chapter on page 36 of the SS2000 on-line manual.

Main Data Items

Additional Data Items

Name Default Value Used for Staging NAACCR Item Required By Metadata
Year of Diagnosis <BLANK> No NAACCR #390 None
Primary Site <BLANK> Yes NAACCR #400 None
Histology <BLANK> Yes NAACCR #522 None
Behavior <BLANK> Yes NAACCR #523 None
RX Summ Systemic/Surgery Sequence <BLANK> Yes NAACCR #1639 None
RX Summ Surgery/Radiation Sequence <BLANK> Yes NAACCR #1380 None
Regional Nodes Positive <BLANK> Yes NAACCR #820 None