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Data Standards and Data Dictionary

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Length: 3
Source of Standard: NAACCR/SEER
Section Name: Stage/Prognostic Factors
Year Implemented: 2025
Version Implemented: 25
Record Types: C, A, I, M

XML NAACCR ID: torontoT

Parent XML Element: Tumor

Required Status:

NPCR Collect: . - No recommendations
CoC Collect: . - No recommendations
SEER Collect: R* - Required, when available
CCCR Collect: . - No recommendations

Description:

This item stores the Toronto T value derived from coded fields the Toronto Stage algorithm (when applicable). Effective for cases diagnosed 1/1/2025 and forward.

Rationale:

Toronto T can be used to evaluate disease spread at diagnosis, treatment patterns and outcomes over time.