Table 1.

ICD-9 diagnosis codes for cancer types of interest.

Cancer	ICD-9 diagnosis codes
Breast	174–174.9
Lung	162–162.9
Colorectal	153–154.8
Head and neck	141–141.9, 143–146.9, 148–149.9, 160–161.9
Gastric	151–151.9
Ovarian	183
Cervical	180–180.9
Renal	189.0, 189.1
Melanoma	172–172.9
Prostate	185
Connective and other soft tissue	171–171.9

ICD-9: International Classification of Diseases, 9th Revision.