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, Functional Aphonias, Aphonia, Voice Absences, Spastic Aphonia, Aphonias, Nonorganic, Voice Absence, Spastic Aphonias, Nonorganic Aphonia, Aphonia, Spastic, Absence of Voice, Aphonia, Nonorganic