Collaborative Stage Data Set - Revised 05/31/2013 FINAL

Nasopharynx

CS Site-Specific Factor 25
Schema Discriminator: Nasopharynx/PharyngealTonsil

Note: For cases coded to primary site code C11.1 (Posterior wall of nasopharynx), code the specific site in which the tumor arose.

Code	Description	Schema
010	Posterior wall of nasopharynx Posterior wall of nasopharynx, NOS	Nasopharynx
020	Adenoid Pharyngeal tonsil Nasopharyngeal tonsil	PharyngealTonsil
100	OBSOLETE DATA RETAINED V0200 C11.1 - originally coded in CSv1 and case diagnosed before 1/1/2010	Nasopharynx
981	Nasopharynx cases coded to C11.0, C11.2, C11.3, C11.8, C11.9 Note: May include cases which were converted to this code from a blank	Nasopharynx