CS Site-Specific Factor 1

Grade for Sarcomas


**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 grading system of the French Federation of Cancer Centers Sarcoma Group (FNCLCC) is preferred system. **Note 2**: Record the grade from any three-grade sarcoma grading system the pathologist uses prior to neoadjuvant treatment. Do not code terms such as "well differentiated" or "poorly differentiated" in this field. **Note 3**: In some cases, especially for needle biopsies, grade may be specified only as "low grade" or "high grade". Use code 100, which maps to G1, or 200, which maps to G3. Codes 010-030 take priority over codes 100 and 200. **Note 4**: The mapping of grade as shown in this table is used in the derivation of AJCC 7 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
See code 988

Not applicable for this schema
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.)
998 No histologic examination of primary site 9
999 Unknown or no information
Not documented in patient record