2022 ICD-10-CM Code F98.5

Adult onset fluency disorder

Version 2021

Valid for Submission

Short Description:Adult onset fluency disorder
Long Description:Adult onset fluency disorder

Code Classification

  • Mental and behavioural disorders (F00–F99)
    • Behavioral and emotional disorders with onset usually occurring in childhood and adolescence (F90-F98)
      • Oth behav/emotn disord w onset usly occur in chldhd and adol (F98)

F98.5 is a billable diagnosis code used to specify a medical diagnosis of adult onset fluency disorder. The code F98.5 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code F98.5 might also be used to specify conditions or terms like acquired stammering, adult onset fluency disorder, borderline stuttering, covert stuttering, developmental dysfluency , developmental expressive language disorder, etc.

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code F98.5:

Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

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 F98.5 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 F98.5 to ICD-9 Code

Information for Patients


What is stuttering?

Stuttering is a speech disorder. It involves interruptions in the flow of speech. These interruptions are called disfluencies. They may involve

Sometimes, along with the stuttering, there may be nodding, rapid blinking, or trembling lips. The stuttering may be worse when you are stressed, excited, or tired.

Stuttering can be frustrating, because you know exactly what you want to say, but you have trouble saying it. It can make it difficult to communicate with people. This can cause problems with school, work, and relationships.

What causes stuttering?

There are two main types of stuttering, and they have different causes:

Who is at risk for stuttering?

Stuttering can affect anyone, but it is much more common in boys than girls. Younger children are most likely to stutter. About 75% of children who stutter will get better. For the rest, stuttering can continue their whole lives.

How is stuttering diagnosed?

Stuttering is usually diagnosed by a speech-language pathologist. This is a health professional who is trained to test and treat people with voice, speech, and language disorders. If you or your child stutters, your regular health care provider may give you a referral to a speech-language pathologist. Or in some cases, a child's teacher may make a referral.

To make a diagnosis, the speech-language pathologist will

What are the treatments for stuttering?

There are different treatments that can help with stuttering. Some of these may help one person but not another. You need to work with the speech-language pathologist to figure out the best plan for you or your child.

The plan should take into account how long the stuttering has been going on and whether there are any other speech or language problems. For a child, the plan should also take into account your child's age and whether he or she is likely to outgrow the stuttering.

Younger children may not need therapy right away. Their parents and teachers can learn strategies to help the child practice speaking. That can help some children. As a parent, it's important to be calm and relaxed when your child is speaking. If your child feels pressured, it can make it harder for them to talk. The speech-language pathologist will probably want to evaluate your child regularly, to see whether treatment is needed.

Speech therapy can help children and adults minimize stuttering. Some techniques include

For adults, self-help groups can help you find resources and support as you face the challenges of stuttering.

There are electronic devices to help with fluency, but more research is needed to see whether they really help over the long term. Some people have tried medicines that usually treat other health problems such as epilepsy, anxiety, or depression. But these medicines are not approved for stuttering, and they often have side effects.

NIH: National Institute on Deafness and Other Communication Disorders

[Learn More in MedlinePlus]

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)