PART IV ITEM 15 Exhibits and Financial Statement Schedules EXHIBIT 32.2 Certification of Chief Financial Officer of Cigna Corporation pursuant to 18 U.S.C. Section 1350 I certify that, to the best of my knowledge and belief, the Annual Report on Form 10-K of Cigna Corporation for the fiscal period ending December 31, 2012 (the ‘‘Report’’): complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (1) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Cigna Corporation. (2) /s/ Ralph J. Nicoletti Ralph J. Nicoletti Chief Financial Officer February 28, 2013