Our engines are known as "D16" in general, that's not a head code. ZC is a block code so that's right, but do you know what block the head in question came off of?
Knowing the full block code traces the origin of the cylinder head. Knowing what block the head was originally mated to matters in determining what features the head contains and compatibility with other blocks/ECUs.
Without knowing the full engine block code that the head came with, it is hard to say.