Well you didnt mention how old your daughter is.
Elevated enzymes can be sign of any liver damage
or bile duct disorder. If she doesnt have any symtpoms then you shouldnt be worried.
Usually when no cause is found then autoimmune hepatitis
needs to be considered.
Just do often examination and check enzymes levels, if any symptoms occur then further tests such as liver biopsy
and CT must be done.
Wish you good health