Carolina will retain 50 percent of Hainsey's salary. Hainsey becomes an unrestricted free agent July 1.
Hainsey, 35, is in his 14th season in the league and fourth with the Hurricanes. The Connecticut native has 14 points but is a minus-14 on the season.
The 6-foot-3 left-handed defenseman led the Hurricanes with 79 hits, was third in ice time and third in blocked shots. He has missed only three games since 2012-13.