vsc/catalytic converter

my vsc off and check engine light came on recently. after getting a free diagnostic at autozone, it appears i need a new catalytic converter. does this track? how much would this cost? any and all input is appreciated

mine is a 2003 with almost 169.565 miles on it. i recently got the battery replaced after the last one was corroded, and i also got an alignment and rotation if that’s relevant. thanks!