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Version 25
Data Item #3420: Derived AJCC-7 M

* indicates required field

Length: 3
Source of Standard: AJCC
Section Name: Stage/Prognostic Factors
Year Implemented: 2010
Version Implemented: 12
Record Types: A, M, C, I

XML NAACCR ID: derivedAjcc7M

Parent XML Element: Tumor

Alternate Names:

  • Derived 7 M Storage Code

Required Status:

NPCR Collect: RH* - Historically collected and currently transmitted when available
CoC Collect: DH - Historically derived and currently transmitted
SEER Collect: DH - Historically derived and currently transmitted
CCCR Collect: DH - Historically derived and currently transmitted

Description:

This item is the derived AJCC “M” staging element from coded fields using the CS algorithm. Effective for cases diagnosed 2010+.

Rationale:

Derived AJCC-7 M can be used to evaluate disease spread at diagnosis, plan and track treatment patterns, and analyze outcomes.

Format:

Right justified, zero filled

Item Data Type:

digits

Allowable Values

000-999

Codes:

See the most current version of the Collaborative Stage Data Collection System (https://cancerstaging.org/cstage/Pages/default.aspx),^13^ for rules and site-specific codes and coding structures.