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, 2004 (the “Report”):

 (1)complies with the requirements of Section 13 (a) or 15 (d) of the Securities Exchange Act of 1934; and

(2)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of CIGNA Corporation.

/s/ Michael W. Bell

Michael W. Bell

Chief Financial Officer

March 4, 2005