ICD-9 codes for Cancer variables- using SEER criteria Varname –Baseline flag Varname –Date of first ICD9 code Cancer Category Cancer Sub-category ICD-9 Code Description admcahx ficahxdt History of Cancer V10 HX OF MALIGNANT NEOPLASM V10.0 HX OF GI MALIGNANCY V10.00 HX OF GI MALIGNANCY ...