2021 ICD-10-CM Code R49.21

Hypernasality

Version 2021
Billable Code
No Valid Principal Dx
MS-DRG Mapping

Valid for Submission

R49.21 is a billable diagnosis code used to specify a medical diagnosis of hypernasality. The code R49.21 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The ICD-10-CM code R49.21 might also be used to specify conditions or terms like finding of resonance of voice, hypernasal voice, hypernasality and hyponasality, hypernasality of vowels and voiced consonants, hypernasality syndrome , hypernasality syndrome due to neurologic disease, etc.

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

ICD-10:R49.21
Short Description:Hypernasality
Long Description:Hypernasality

Code Classification

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code R49.21 are found in the index:

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert R49.21 to ICD-9 Code

Information for Patients


Nose Injuries and Disorders

Also called: Nasal disorders

Your nose is important to your health. It filters the air you breathe, removing dust, germs, and irritants. It warms and moistens the air to keep your lungs and tubes that lead to them from drying out. Your nose also contains the nerve cells that help your sense of smell. When there is a problem with your nose, your whole body can suffer. For example, the stuffy nose of the common cold can make it hard for you to breathe, sleep, or get comfortable.

Many problems besides the common cold can affect the nose. They include


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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

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


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Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)