Specific code 2010 ICD-9-CM Diagnosis Code 784.40
Voice and resonance disorder, unspecified
  • Short description: Voice/resonance dis NOS.
  • ICD-9-CM 784.40 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 784.40 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2010 version of ICD-9-CM 784.40.
  • More recent version(s) of ICD-9-CM 784.40: 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 784.40 converts approximately to:
  • 2015/16 ICD-10-CM R49.9 Unspecified voice and resonance disorder
Disease Synonyms
  • 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
  • Speech resonance disoder
  • Speech resonance disorder
  • 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
ICD-9-CM Volume 2 Index entries containing back-references to 784.40:
  • Defect, defective 759.9
    • voice and resonance 784.40
  • Disturbance - see also Disease
    • voice and resonance 784.40
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 784.40 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2010 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.