_SYS AJCC ID, Date of Diagnosis, CoC Flag (SEER)

Oct 21, 2019 · that the Schema ID assigned is valid for the coded site, histology, behavior, and . schema discriminator(s) if required. The edit, _SYS Schema ID, Date of Diagnosis (NAACCR), checks that the data item is collected appropriately for diagnosis year. The edit is skipped if Schema ID is blank . ................
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