Upper level: b139 Global mental functions, other specified and unspecified
General mental functions of knowing and ascertaining one's relation to self, to others, to time and to one's surroundings.
Inclusions: functions of orientation to time, place and person; orientation to self and others; disorientation to time, place and person
Exclusions: consciousness functions (b110); attention functions (b140); memory functions (b144)
Lower livel: