This belongs to the set of Collaborative Staging (CS) data items effective with 2004 diagnosis. It is based on and replaces EOD--Extension (790) and EOD--Extension Prost Path (800). This modification for CS is collapsible into AJCC T code according to the sixth edition of AJCC Cancer Staging Manual. "CS Extension" identifies the primary tumor growth within the organ of origin or its extension into neighboring organs. For certain sites such as ovary, discontinuous metastasis is coded in the CS Extension field. Site-specific codes provide extensive detail describing disease extent. "CS Extension" is used to derive the Derived AJCC T [2940], Derived AJCC Stage Group [3000], Derived SS1977 [3010], and Derived SS2000 [3020] codes. .. NAACCR Data Standards and Data Dictionary Version 11
status
ACTIVE
Fully-Specified Name
component
Extension.collaborative staging
property
Type = Type: The Property Type is used for assays that identify the specific analyte in cases when the baseline presence of the analyte is known.
time
Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
system
Cancer.XXX
scale
Nom = Nominal: Nominal or categorical responses that do not have a natural ordering. (e.g., names of bacteria, reported as answers, categories of appearance that do not have a natural ordering, such as, yellow, clear, bloody.
method
Additional Names
short name
CA; CS; EXT; Extension CS; Misc; Miscellaneous; Nominal; Oncology; Other; Point in time; Random; Spec; To be specified in another part of the message; TUMOR REGISTRY(NAACCR); Typ; Unspecified
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