2026 ICD-10-CM Diagnosis Code F80.81Childhood onset fluency disorder

ICD-10-CM Codes›F01–F99›F80-F89›F80

ICD-10-CM F80.81
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F80.81 is a billable ICD-10-CM diagnosis code for childhood onset fluency disorder. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neurodevelopmental disorders.

Code Identity

ICD-10-CM Code
F80.81
Billable Status
Yes — Valid for Submission
Code Describes
Childhood onset fluency disorder
Short Description
Childhood onset fluency disorder
Same as the full description in the CMS dataset.
Parent Code
F80.8
Other developmental disorders of speech and language

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF80-F89Pervasive and specific developmental disorders
CategoryF80Specific developmental disorders of speech and language
This CodeF80.81Childhood onset fluency disorder

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired stammering
  • Adult onset stuttering
  • Borderline stuttering
  • Childhood onset fluency disorder
  • Childhood onset stuttering
  • Covert stuttering
  • Developmental dysfluency
  • Developmental expressive language disorder
  • Developmental speech fluency disorder
  • Disorder of fluency
  • Dysfluency
  • Idiopathic stammering
  • Neurogenic stammering
  • Normal non-fluency
  • Primary stuttering
  • Psychogenic stuttering
  • Psychogenic voice disorder
  • Secondary stuttering
  • Stuttering

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Cluttering NOS
  • Stuttering NOS

Type 1 Excludes

  • adult onset fluency disorder F98.5
  • fluency disorder in conditions classified elsewhere R47.82
  • fluency disorder (stuttering) following cerebrovascular disease (I69. with final characters -23)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

  • - Stammering - See Also: Disorder, fluency; - F80.81

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Cluttering
    • Disorder(of)
      • fluency
        • childhood onset
    • Stammering
    • Stuttering
    • Stuttering
      • childhood onset

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MBD014
Neurodevelopmental disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Stuttering

    a disturbance in the normal fluency and time patterning of speech that is inappropriate for the individual's age. this disturbance is characterized by frequent repetitions or prolongations of sounds or syllables. various other types of speech dysfluencies may also be involved including interjections, broken words, audible or silent blocking, circumlocutions, words produced with an excess of physical tension, and monosyllabic whole word repetitions. stuttering may occur as a developmental condition in childhood or as an acquired disorder which may be associated with brain infarctions and other brain diseases. (from dsm-iv, 1994)

Patient EducationClinical

Speech and Communication Disorders

Many disorders can affect our ability to speak and communicate. They range from saying sounds incorrectly to being completely unable to speak or understand speech. Causes include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert F80.81 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
315.35 Chldhd onset flncy disor
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About F80.81Overview

Is F80.81 (Other developmental disorders of speech and language) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report childhood onset fluency disorder on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of F80.81?

Under the General Equivalence Mappings, childhood onset fluency disorder converts to ICD-9-CM 315.35 (chldhd onset flncy disor). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.