Upper level: b3 Voice and speech functions
Functions of the production of other manners of vocalization.
Inclusions: functions of the production of notes and range of sounds, such as in singing, chanting, babbling and humming; crying aloud and screaming
Exclusions: mental functions of language (b167); voice functions (b310); articulation functions (b320); fluency and rhythm of speech functions (b330)
Lower livel: