Collaborative Stage Data Collection System

CS Mets Eval 2860 Code AJCC clinical and pathologic staging basis for metastatic involvement. ... C16.8-C16.9 do not require that Site-Specific Factor 25 be coded, and the site-specific factor is left blank. The ICD-O-3 code for nasopharynx, C11.1, for the histologies shown in the table, requires that Site-Specific Factor 25 be coded; the ICD-O ... ................
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