As used in sections 632.550 to 632.557, the following terms mean:

1. (1) "Board", the governing board established in section 632.555;
2. (2) "Child", a person under the age of eighteen years;
3. (3) "Demonstration project", the project established in section 632.553;
4. (4) "Department", the department of mental health;
5. (5) "Severely emotionally disturbed child", a child who exhibits substantial impairment in his ability to function at a developmentally appropriate level due to the presence of a serious psychiatric disorder.

(L. 1989 H.B. 502, et al. § 1)