Collaborative Stage

Note 1: Comprehensive grading of soft tissue sarcomas is strongly correlated with disease specific survival and incorporates differentiation, mitotic rate and extent of necrosis. The French Federation of Cancer Centers Sarcoma Group (FNCLCC) is the preferred grading system; however, record the grade from any 3 grade sarcoma grading system the pathologist uses. Do not code terms such as "well differentiated" or "poorly differentiated" in this field. See also Note 2.
Note 2: In some cases, especially for needle biopsies, grade may be specified only as "low grade" or "high grade" . In this case, use codes 100, which maps to G1 or 200, which maps to G3. Codes 010-030 take priority over codes 100 and 200.
Note 3: The mapping of this SSF is used in AJCC 7th Staging.

Code	Description	Mapping of Grade
010	Specified as Grade 1 [of 3]	1
020	Specified as Grade 2 [of 3]	2
030	Specified as Grade 3 [of 3]	3
100	Grade stated as "low grade" [NOS]	1
200	Grade stated as "high grade" [NOS]	3
888	OBSOLETE DATA CONVERTED V0200 See code 988 Not applicable for this schema	9
988	Not applicable: Information not collected for this case (May include cases converted from code 888 used in CSv1 for "Not applicable" or when the item was not collected. If this item is required to derive T, N, M, or any stage, use of code 988 may result in an error.)	9
998	No histologic examination of primary site	9
999	Unknown Insufficient information Not documented in patient record	9

CS Site-Specific Factor 1
Grade for Sarcomas