Homeowner’s Policy, Q on State Farm, Increased Dwelling

If my house is appraised at $800K, and my State Farm homeowner's policy is Dwelling (Coverage A), $689K, and Increased Dwelling – Option ID is $344K, am I sufficiently covered, in other words, can I just add up Coverage A + Increased Dwelling? If not, please lmk the reason. Thank you !

(Note that the appraised house value includes the land, so I expect the cost to rebuild is approx. $600K)