Complete loss of phonation due to organic disease of the larynx or to nonorganic (i.e., psychogenic) causes.

Synonyms: Aphonias, Spastic, Paralytica, Aphonia, Functional Aphonia, Nonorganic Aphonias, Aphonia, Functional, Aphonias, Functional, Aphonia Paralytica, Aphonia, Functional Aphonias, Voice Absences, Spastic Aphonia, Aphonias, Nonorganic, Voice Absence, Nonorganic Aphonia, Spastic Aphonias, Aphonia, Spastic, Absence of Voice, Aphonia, Nonorganic