ICD-9 Diagnosis Code 784.40

Voice/resonance dis NOS

Diagnosis Code 784.40

ICD-9: 784.40
Short Description: Voice/resonance dis NOS
Long Description: Voice and resonance disorder, unspecified
This is the 2014 version of the ICD-9-CM diagnosis code 784.40

Code Classification
  • Symptoms, signs, and ill-defined conditions (780–799)
    • Symptoms (780-789)
      • 784 Symptoms involving head and neck

Information for Medical Professionals

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Abnormal voice
  • Difficulty imitating vocalization
  • Difficulty producing appropriate voice quality
  • Difficulty using phonological processes
  • Harsh voice quality
  • Hypernasality of vowels and voiced consonants
  • Low-pitch hoarse group
  • Organic voice tremor
  • Pharyngeal voice
  • Strained hoarse voice arrest-intermittent arrhythmic group
  • Strained hoarse voice arrest-intermittent rhythmic group
  • Unable to coordinate airflow and voice onset
  • Unable to produce appropriate voice volume
  • Unable to produce voice
  • Unable to use phonological processes
  • Unable to use vocal tunes and phonetic units
  • Ventricular band phonation
  • Vocal fatigue
  • Voice cluster
  • Voice misuse
  • Voice tremor group

Index of Diseases and Injuries
References found for the code 784.40 in the Index of Diseases and Injuries:

Information for Patients

Voice Disorders

Also called: Vocal disorders

Voice is the sound made by air passing from your lungs through your larynx, or voice box. In your larynx are your vocal cords, two bands of muscle that vibrate to make sound. For most of us, our voices play a big part in who we are, what we do, and how we communicate. Like fingerprints, each person's voice is unique.

Many things we do can injure our vocal cords. Talking too much, screaming, constantly clearing your throat, or smoking can make you hoarse. They can also lead to problems such as nodules, polyps, and sores on the vocal cords. Other causes of voice disorders include infections, upward movement of stomach acids into the throat, growths due to a virus, cancer, and diseases that paralyze the vocal cords.

Signs that your voice isn't healthy include

  • Your voice has become hoarse or raspy
  • You've lost the ability to hit some high notes when singing
  • Your voice suddenly sounds deeper
  • Your throat often feels raw, achy, or strained
  • It's become an effort to talk

Treatment for voice disorders varies depending on the cause. Most voice problems can be successfully treated when diagnosed early.

NIH: National Institute on Deafness and Other Communication Disorders

  • Botulinum toxin injection - larynx
  • Hoarseness
  • Laryngeal nerve damage
  • Laryngitis
  • Laryngoscopy
  • Spasmodic dysphonia

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