## EXHIBIT 23 Consent of Independent Registered Public Accounting Firm 

We hereby consent to the incorporation by reference in the Registration Statement on Form S-3 (No. 333-183238) and Form S-8 (No. 333-179307, No. 333-166583, No. 333-163899, No. 333-147994, No. 333-64207, No. 333-129395, No. 333-107839, No. 333-90785, No. 333-31903, No. 333-22391, 

/s/ PricewaterhouseCoopers LLP 

Philadelphia, Pennsylvania 

February 28, 2013 

No. 033-60053 and No. 033-51791) of Cigna Corporation of our reports dated February 28, 2013 relating to the financial statements, the financial statement schedules and the effectiveness of internal control over financial reporting, which appear in this Form 10-K. 

