Table A1.

Case Identification for Study Cohort

Cancer Site	ICD-9 Diagnosis Code	ICD-9 Procedure Code
Bladder	188, 188.0-9	57.6, 57.7x, 68.8
Breast	174.x	85.21, 85.22, 85.23, 85.4x
Colon/rectum	153.x, 154.x	45.7x, 45.8x, 48.4x, 48.5x, 48.6x, 17.3x
Endometrium	182.x	68.3x, 68.4x, 68.5x, 68.6x, 68.7x, 68.8, 68.9
Kidney	189, 189.0, 189.8,189.9	55.4, 55.4, 55.51, 55.52, 55.54
Lung	162.x	32.20, 32.29, 32.3x, 32.4x, 32.5x, 32.6, 32.9
Ovary	183.x	65.3x, 65.4x, 65.5x, 65.6x
Prostate	185	60.4, 60.5, 60.62
Pancreas	157.x	52.5x, 52.6, 52.7
Stomach	151.x	43.5, 43.6, 43.7, 43.8x, 43.9x

NOTE. Observations required concurrent codes for both diagnosis and procedure for study inclusion.

Abbreviation: ICD-9, International Classification of Disease, Ninth Revision, Clinical Modification.