; or (ii) (I) in the case of individuals at high risk for colorectal cancer, if the procedure is performed within the 23 months after a previous screening computed tomography colonography or a previous screening colonoscopy; or (II) in the case of an individual who is not at high risk for colorectal cancer, if the procedure is performed within the 119 months after a previous screening co­lo­nos­co­py or within the 59 months after a previous screening flexible sigmoidoscopy or a previous screening computed tomography colonography. . (c) Conforming frequency limits for other colorectal cancer screening tests (1) Screening flexible sigmoidoscopy Paragraph (2)(E)(ii) of section 1834(d) of the Social Security Act ( 42 U.S.C. 1395m(d) ) is amended by inserting or screening computed tomography colonography after previous screening flexible sigmoidoscopy . (2) Screening colonoscopy Paragraph (3)(E) of such section is amended— (A) by inserting or screening computed tomography colonography after 23 months after a previous screening colonoscopy