Haw. Rev. Stat. § 704-416: Statements for purposes of examination or treatment inadmissible except on issue of physical or mental condition.

A statement made by a person subjected to examination or treatment pursuant to this chapter for the purposes of such examination or treatment shall not be admissible in evidence against the person in any penal proceeding on any issue other than that of the person's physical or mental condition, but it shall be admissible upon that issue, whether or not it would otherwise be deemed a privileged communication, unless such statement constitutes an admission of guilt of the offense charged.