2026 ICD-10-CM Diagnosis Code F98.4Stereotyped movement disorders

ICD-10-CM Codes›F01–F99›F90-F98›F98

ICD-10-CM F98.4
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F98.4 is a billable ICD-10-CM diagnosis code for stereotyped movement disorders. 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
F98.4
Billable Status
Yes — Valid for Submission
Code Describes
Stereotyped movement disorders
Short Description
Stereotyped movement disorders
Same as the full description in the CMS dataset.
Parent Code
F98
Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF90-F98Behavioral and emotional disorders with onset usually occurring in childhood and adolescence
CategoryF98Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence
This CodeF98.4Stereotyped movement disorders

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired nystagmus
  • Always follows the same route - stereotyped routine
  • Arranging objects in straight line - stereotyped routine
  • Clinging to special objects - stereotyped routine
  • Collecting objects - stereotyped routine
  • Complex mannerisms - stereotype
  • Flapping movements of arms
  • NRXN1-related severe neurodevelopmental disorder, motor stereotypies, chronic constipation, sleep-wake cycle disturbance
  • Palikinesia
  • Posturing routine
  • Primary stereotypy
  • Repetitive chin tapping
  • Repetitive complex twisting movements
  • Repetitive complex twisting movements of limbs
  • Repetitive complex twisting movements of whole body
  • Repetitive finger tapping
  • Repetitive flapping movements
  • Repetitive flicking movements
  • Repetitive hand wringing
  • Repetitive pressing on eyes
  • Repetitive rocking movements
  • Repetitive routines
  • Repetitive rubbing of body parts
  • Repetitive spinning movements
  • Repetitive spinning of objects
  • Repetitive spinning of whole body
  • Repetitive tapping movements
  • Repetitive tiptoe walking
  • Repetitive touching of objects
  • Repititive complex twisting of hands near eyes
  • Secondary stereotypy
  • Severe intellectual disability, progressive postnatal microcephaly, midline stereotypic hand movements syndrome
  • Severe neurodevelopmental disorder with feeding difficulties, stereotypic hand movement, bilateral cataract
  • Spasmus nutans
  • Stereotyped routines
  • Stereotypic movement disorder with self-injurious behavior
  • Stereotypic movement disorder without self-injurious behavior
  • Stereotypy habit disorder

Tabular List NotesGuidance

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

Inclusion Terms

  • Stereotype/habit disorder

Type 1 Excludes

  • abnormal involuntary movements R25

Type 2 Excludes

  • compulsions in obsessive-compulsive disorder F42
  • hair plucking F63.3
  • movement disorders of organic origin G20 G25
  • nail-biting F98.8
  • nose-picking F98.8
  • stereotypies that are part of a broader psychiatric condition F01 F95
  • thumb-sucking F98.8
  • tic disorders F95
  • trichotillomania F63.3

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

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

    • Body, bodies
      • rocking
    • Disorder(of)
      • movement
        • stereotyped
    • Disorder(of)
      • stereotyped, habit or movement
    • Hair
      • plucking
        • in stereotyped movement disorder
    • Spasm(s), spastic, spasticity
      • nodding
    • Spasmus nutans
    • Stereotypies NEC

Clinical ClassificationClinical

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

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

Patient EducationClinical

Mental Disorders

Mental disorders (or mental illnesses) are conditions that affect your thinking, feeling, mood, and behavior. They may happen over a short period of time or come and go. Some can be chronic (long-lasting). They can affect your ability to relate to others and function each day..

The full article covers:

  • What are mental disorders?
  • What are some types of mental disorders?
  • What causes mental disorders?
  • Who is at risk for mental disorders?
  • How are mental disorders diagnosed?
  • What are the treatments for mental disorders?

Read the full article at MedlinePlus

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

Convert F98.4 to ICD-9-CMHistory

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

ICD-9-CM
307.3 Stereotypic movement dis
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 F98.4Overview

Is F98.4 a billable code?

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

What is the ICD-9 equivalent of F98.4?

Under the General Equivalence Mappings, stereotyped movement disorders converts to ICD-9-CM 307.3 (stereotypic movement dis). 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.