* indicates required field
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: torontoStageGroup
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:
Toronto Stage Group is derived using the Toronto Stage Data Items (Toronto T [9628], Toronto N [9629] and Toronto M [9630]) algorithm. Other data items may be included in the derivation process. Effective for cases diagnosed 1/1/2025 and forward.
Rationale:
Toronto Stage Group can be used to evaluate disease spread at diagnosis, treatment patterns and outcomes over time.