Collaborative Stage Data Set - Revised 06/18/2013 FINAL


CS Site-Specific Factor 1
World Health Organization (WHO) Grade Classification

010Grade I
020Grade II
030Grade III
040Grade IV
988Not applicable: Information not collected for this case
(If this item is required by your standard setter, use of code 988 will result in an edit error.)
998No histologic examination of primary site
999Not documented in medical record
Unknown; WHO grade not stated

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