2026 ICD-10-CM Diagnosis Code F63.9Impulse disorder, unspecified

ICD-10-CM Codes›F01–F99›F60-F69›F63

ICD-10-CM F63.9
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

F63.9 is a billable ICD-10-CM diagnosis code for impulse disorder, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). Coders also document this condition as impulse control disorder. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Disruptive, impulse-control and conduct disorders.

Code Identity

ICD-10-CM Code
F63.9
Billable Status
Yes — Valid for Submission
Code Describes
Impulse disorder, unspecified
Short Description
Impulse disorder, unspecified
Same as the full description in the CMS dataset.
Parent Code
F63
Impulse disorders

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF60-F69Disorders of adult personality and behavior
CategoryF63Impulse disorders
This CodeF63.9Impulse disorder, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Impulse control disorder
  • Impulse control disorder caused by cocaine
  • Impulse control disorder caused by psychoactive substance
  • Impulse control disorder caused by stimulant
  • Impulse control disorder caused by synthetic cathinone
  • Impulse control disorder in remission

Tabular List NotesGuidance

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

Inclusion Terms

  • Impulse control disorder NOS

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.

    • Disorder(of)
      • conduct (childhood)
        • compulsive
    • Disorder(of)
      • habit (and impulse)
    • Disorder(of)
      • impulse (control)
    • Disturbance(s)
      • conduct
        • compulsive

Clinical ClassificationClinical

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

CCSR MBD008
Disruptive, impulse-control and conduct 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 F63.9 to ICD-9-CMHistory

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

ICD-9-CM
312.30 Impulse control dis NOS
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 F63.9Overview

Is F63.9 (Impulse disorders) a billable code?

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

What is the ICD-9 equivalent of F63.9?

Under the General Equivalence Mappings, impulse disorder, unspecified converts to ICD-9-CM 312.30 (impulse control dis NOS). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.