Adult onset fluency disorder

This code represents a speech disorder characterized by disruptions in the normal flow and rhythm of speech, such as repetitions of sounds, syllables, or words, prolongations of sounds, and interjections, that manifest in adulthood. It is distinct from developmental stuttering that originates in childhood.

Use this code for patients presenting with new-onset stuttering or other fluency disturbances that began after the typical age of speech development. Documentation should clearly indicate the adult onset of the fluency disorder, often following a neurological event, trauma, or psychological stressor.

• Differentiate carefully from developmental stuttering (307.0) when the onset is in childhood.
• Consider co-occurring neurological conditions or psychological factors that may contribute to or cause the adult-onset fluency disorder.
• Ensure documentation specifies "adult onset" to support the use of this particular code.