Other voice and resonance disorders

This code signifies a range of vocal and resonance abnormalities not specifically classified elsewhere. It encompasses conditions affecting the quality, pitch, loudness, or resonance of speech, such as functional dysphonia, spasmodic dysphonia, or hypernasality/hyponasality without an underlying structural cause. These disorders impact communication and may stem from neurological, psychological, or idiopathic factors.

Utilize this code when documentation clearly indicates a voice or resonance disorder that does not fit more specific ICD-10-CM codes. This includes diagnoses like "functional voice disorder," "spasmodic dysphonia NOS," or "velopharyngeal insufficiency, unspecified." The medical record should detail the nature of the voice or resonance disturbance and rule out more definitive etiologies.

• Ensure documentation specifies the type of voice or resonance disorder if known; avoid this code if a more specific code exists (e.g., vocal cord paralysis).
• Do not use for aphonia or dysphonia due to laryngeal disease (e.g., L91.0 for vocal cord nodules).
• Consider sequencing this code as a primary diagnosis when the voice/resonance disorder is the chief complaint or reason for the encounter.