This question comes up a bit. What is considered 'serious harm'?
Below is a definition of Serious Harm from Schedule 1 of the Health and Safety in Employment Act 1992 (NZ).
Serious harm means death, or harm of a kind or description declared by the Governor-General by Order in Council to be serious for the purposes of the Act; and 'seriously harmed' has a corresponding meaning.
Until such an Order in Council is made, the following types of harm are defined in Schedule 1 as 'serious harm' for the purposes of the Act: