Collaborative Stage Data Set - Revised 05/24/2013 FINAL


CS Site-Specific Factor 6
Circumferential Resection Margin (CRM)

000Margin IS involved with tumor
Circumferential resection margin (CRM) positive
Described as "less than 1 millimeter (mm)"
001-9800.1- 98.0 millimeter (mm)
(Exact size to nearest tenth of millimeter)
98198.1 mm or greater
988Not 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.)
990No residual tumor identified on specimen
991Margins clear, distance from tumor not stated
CRM negative, NOS
992Described as "less than 2 mm," or "greater than 1 mm," or "between 1 mm and 2 mm"
993Described as "less than 3 mm," or "greater than 2 mm," or "between 2 mm and 3 mm"
994Described as "less than 4 mm," or "greater than 3 mm," or "between 3 mm and 4 mm"
995Described as "less than 5 mm," or "greater than 4 mm," or "between 4 mm and 5 mm"
996Described as "greater than 5 mm"
998No resection of primary site
Surgical procedure did not remove enough tissue to measure the CRM
(Examples include: polypectomy only, excision of tumor only or excisional biopsy only)
999Unknown or no information
CRM not mentioned
Not documented in patient record

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